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NZ757542B2 - Paperbead for protecting drywall corners - Google Patents
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NZ757542B2 - Paperbead for protecting drywall corners - Google Patents

Paperbead for protecting drywall corners

Info

Publication number
NZ757542B2
NZ757542B2 NZ757542A NZ75754218A NZ757542B2 NZ 757542 B2 NZ757542 B2 NZ 757542B2 NZ 757542 A NZ757542 A NZ 757542A NZ 75754218 A NZ75754218 A NZ 75754218A NZ 757542 B2 NZ757542 B2 NZ 757542B2
Authority
NZ
New Zealand
Prior art keywords
paper strip
flange
paperbead
core
edge
Prior art date
Application number
NZ757542A
Other versions
NZ757542A (en
Inventor
Stephen Bodner
Original Assignee
Bailey Metal Products Limited
Filing date
Publication date
Priority claimed from CA2959913A external-priority patent/CA2959913C/en
Priority claimed from US15/449,435 external-priority patent/US10458122B2/en
Application filed by Bailey Metal Products Limited filed Critical Bailey Metal Products Limited
Publication of NZ757542A publication Critical patent/NZ757542A/en
Publication of NZ757542B2 publication Critical patent/NZ757542B2/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/06—Edge-protecting borders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
    • E04F19/022—Borders; Finishing strips, e.g. beadings; Light coves for use at vertical intersections of walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
    • E04F19/026—Borders; Finishing strips, e.g. beadings; Light coves specially adapted for cushioning impacts
    • E04F19/028—Borders; Finishing strips, e.g. beadings; Light coves specially adapted for cushioning impacts used at protruding corners
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
    • E04F19/06—Borders; Finishing strips, e.g. beadings; Light coves specially designed for securing panels or masking the edges of wall- or floor-covering elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F19/00—Other details of constructional parts for finishing work on buildings
    • E04F19/02—Borders; Finishing strips, e.g. beadings; Light coves
    • E04F19/06—Borders; Finishing strips, e.g. beadings; Light coves specially designed for securing panels or masking the edges of wall- or floor-covering elements
    • E04F19/062—Borders; Finishing strips, e.g. beadings; Light coves specially designed for securing panels or masking the edges of wall- or floor-covering elements used between similar elements
    • E04F19/064—Borders; Finishing strips, e.g. beadings; Light coves specially designed for securing panels or masking the edges of wall- or floor-covering elements used between similar elements in corners
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/02—Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04—Bases for plaster
    • E04F13/06—Edge-protecting borders
    • E04F2013/063—Edge-protecting borders for corners

Abstract

The present invention relates to drywall paperbeads, particularly drywall paperbeads for use in protecting exposed drywall surfaces having non-planar surface contours in an edge region adjacent drywall edges of the drywall surface. The paperbead includes an elongated core having an inner surface and an outer surface, an elongated paper strip having an inner surface and an outer surface, a thickness of between 6 and 7 mils, a weight of between 110 and 125 grams/square meter (gsm) and a porosity of 30 to 130 Gurley sec. The inner surface of the paper strip is roughened and bonded to the outer surface of the core. The outer portion of the thickness of the paper strip is impregnated with a strengthening compound, preferably a polymer strengthening compound, more preferably a latex strengthening compound in an amount of between 3.5% and 13% of the total weight of the paper strip. The paper strip is of a width greater than the width of the core such that at least one edge of the paper strip extends laterally beyond the edge of the core to form a wing on at least one edge of the paperbead. The wing of the paper strip of the paperbead follows the non-planar surface contour of the drywall in the edge region adjacent the drywall edge.

Claims (36)

What is claimed is:
1. An improved paperbead for use in protecting exposed drywall surface having a non- planar surface contour in an edge region adjacent the drywall edges, the paperbead comprising an elongated core having an inner and an outer surface, an elongated paper strip having an inner surface and an outer surface, a thickness of between 6 and 7 mils, a weight of between 110 and 125 grams/square meter (gsm) and a porosity of 30 to 130 Gurley sec., the inner surface of the paper strip being roughened and being bonded to the outer surface of the core, the width of the paper strip being greater than the width of the core such that at least one edge of the paper strip extends laterally beyond the edge of the core to form a wing on at least one edge of the paperbead, the outer portion of the thickness of the paper strip being impregnated with a strengthening compound in an amount of between 3.5% and 13% of the total weight of the paper strip.
2. The improved paperbead for use as claimed in claim 1, wherein the strengthening compound penetrates only up to about half the thickness of the paper strip.
3. The improved paperbead for use as claimed in claim 2 wherein the strengthening compound is a latex strengthening compound.
4. The improved paperbead for use as claimed in claim 3 wherein, the latex strengthening compound is cross-linked.
5. The improved paperbead for use as claimed in claim 4 wherein the inner surface of the paper strip is roughened by mechanical means. P15423PC00
6. The improved paperbead for use as claimed in claim 5 wherein of the outer surface the paper strip in a border region of the wing is lightly roughened or buffed.
7. The improved paperbead for use as claimed in claim 6 wherein the border region extends about 0.5 to about 1 inch from the edge of the paper strip.
8. The improved paperbead for use as claimed in claim 7, wherein the border region extends about 0.625 inch from the edge of the paper strip.
9. The improved paperbead for use as claimed in claim 7 wherein the paper strip is about 6.5 mils in thickness, having a weight of about 117 grams/square meter (gsm) and a porosity of about 80 Gurley sec., the outer portion of the thickness of the paper strip being impregnated with about 8.3% of the total weight of the paper strip of a polymer strengthening compound.
10. The improved paperbead for use as claimed in claim 9 wherein the core has a pair of flanges, the paper strip extending beyond the flanges to form a pair of wings to provide a border region, the border region being roughened.
11. The improved paperbead for use as claimed in claim 9 wherein the core is selected from the group consisting of: a) a center rib and two shoulders interposed between said flanges, said shoulders connecting said center rib and said flanges; b) a bullnose and a pair of shoulders interposed between said flanges, said shoulders connecting said bullnose to said flanges; c) a shoulder and an offset rib, said flanges comprising a long flange and a short flange, said short flange having an inner surface, said shoulder connecting said long flange and P15423PC00 said offset rib, said wing extending beyond said short flange bonded to said inner surface of said short flange; d) a center portion, an offset rib, a first flange and a second flange, said center portion positioned between said offset rib and said second flange, said second flange extending from said center portion, said first flange extending from said offset rib in a direction opposite said second flange; e) a center portion, a short flange and a long flange, said center portion positioned between said long flange and said short flange to form a J-shape; f) two strips, said strips positioned so as to form a space between them; or g) two strips, said strips being joined by a living hinge.
12. The improved paperbead for use as claimed in claim 11 wherein a formulated synthetic emulsion adhesive bonds the paper strip to the core.
13. A method for protecting exposed drywall edges where, the drywall surface has a non-planar surface contour in an edge region adjacent the drywall edges the method comprising: a) providing a paperbead having an elongated core with an inner surface and an outer surface, and an elongated paper strip having an inner surface and an outer surface, a thickness of between 6 and 7 mils, a weight of between 110 and 125 grams/square meter (gsm) and a porosity of 30 to 130 Gurley sec., the inner surface of the paper strip being roughened and being bonded to the outer surface of the core, the width of the paper strip being greater than the width of the core such that at least one edge of the paper strip extends laterally beyond the edge of the core to form a wing on at least one edge of the paperbead, the outer portion of the thickness of the paper strip being impregnated with a strengthening compound in an amount of between 3.5% and 13% of the total weight of the paper strip. P15423PC00 b) applying a bonding layer of a joint compound to the edge region of the drywall c) embedding the paperbead into the bonding layer of the joint compound, such that the wing of the paperbead follows the non-planar surface contour in the edge region, d) applying an exterior layer of joint compound to the outer surface of the paperbead extending beyond the wing and the bonding layer, and e) allowing the exterior layer of joint compound to dry followed by sanding and feathering to produce a smooth surface between the drywall and the paperbead.
14. The method as claimed in claim 13, wherein the strengthening compound penetrates only up to about half the thickness of the paper strip.
15. The method as claimed in claim 14, wherein the strengthening compound is a latex strengthening compound.
16. The method as claimed in claim 15, wherein, the latex strengthening compound is cross-linked.
17. The method of claim 16, wherein the inner surface of the paper strip is roughened by mechanical means.
18. The method of claim 17, wherein in a border region of the wing the outer surface of the paper strip, is lightly roughened or buffed.
19. The method of claim 18, wherein the border region extends about 0.5 to about 1 inch from the edge of the paper strip. P15423PC00
20. The method of claim 19, wherein the border region extends about 0.625 inch from the edge of the paper strip.
21. The method as claimed in claim 20 wherein the paper strip is about 6.5 mils in thickness, having a weight of about 117 grams/square meter (gsm) and a porosity of about 80 Gurley sec., the outer portion of the thickness of the paper strip being impregnated with about 8.3% of the total weight of the paper strip of a polymer strengthening compound.
22. The method as claimed in claim 21 wherein the core has a pair of flanges, the paper strip extending beyond the flanges to form a pair of wings to provide a border region, the border region being roughened.
23. The method of claim 21, wherein said core is selected from the group consisting of: a) a center rib and two shoulders interposed between said flanges, said shoulders connecting said center rib and said flanges; b) a bullnose and a pair of shoulders interposed between said flanges, said shoulders connecting said bullnose to said flanges; c) a shoulder and an offset rib, said flanges comprising a long flange and a short flange, said short flange having an inner surface, said shoulder connecting said long flange and said offset rib, said wing extending beyond said short flange bonded to said inner surface of said short flange; d) a center portion, an offset rib, a first flange and a second flange, said center portion positioned between said offset rib and said second flange, said second flange extending from said center portion, said first flange extending from said offset rib in a direction opposite said second flange; P15423PC00 e) a center portion, a short flange and a long flange, said center portion positioned between said long flange and said short flange to form a J-shape; f) two strips, said strips positioned so as to form a space between them; or g) two strips, said strips being joined by a living hinge.
24. The method of claim 23, wherein the paperbead further comprising a formulated synthetic emulsion adhesive bonding said paper strip to said core.
25. The use of an improved paperbead for protecting exposed drywall surface having a non-planar surface contour in an edge region adjacent the drywall edges, the improved paperbead comprising an elongated core having an inner and an outer surface, an elongated paper strip having an inner surface and an outer surface, a thickness of between 6 and 7 mils, a weight of between 110 and 125 grams/square meter (gsm) and a porosity of 30 to 130 Gurley sec., the inner surface of the paper strip being roughened and being bonded to the outer surface of the core, the width of the paper strip being greater than the width of the core such that at least one edge of the paper strip extends laterally beyond the edge of the core to form a wing on at least one edge of the paperbead, the outer portion of the thickness of the paper strip being impregnated with a strengthening compound in an amount of between 3.5% and 13% of the total weight of the paper strip.
26. The use of the improved paperbead as claimed in claim 25, wherein the strengthening compound penetrates only up to about half the thickness of the paper strip.
27. The use of the improved paperbead as claimed in claim 26 wherein the strengthening compound is a latex strengthening compound. P15423PC00
28. The use of the improved paperbead as claimed in claim 27 wherein, the latex strengthening compound is cross-linked.
29. The use of the improved paperbead as claimed in claim 28 wherein the inner surface of the paper strip is roughened by mechanical means.
30. The use of the improved paperbead as claimed in claim 29 wherein the outer surface the paper strip in a border region of the wing is lightly roughened or buffed.
31. The use of the improved paperbead as claimed in claim 30 wherein the border region extends about 0.5 to about 1 inch from the edge of the paper strip.
32. The use of the improved paperbead as claimed in claim 31, wherein the border region extends about 0.625 inch from the edge of the paper strip.
33. The use of the improved paperbead as claimed in claim 31 wherein the paper strip is about 6.5 mils in thickness, having a weight of about 117 grams/square meter (gsm) and a porosity of about 80 Gurley sec., the outer portion of the thickness of the paper strip being impregnated with about 8.3% of the total weight of the paper strip of a polymer strengthening compound.
34. The use of the improved paperbead as claimed in claim 33 wherein the core has a pair of flanges, the paper strip extending beyond the flanges to form a pair of wings to provide a border region, the border region being roughened. P15423PC00
35. The use of the improved paperbead as claimed in claim 33 wherein the core is selected from the group consisting of: a) a center rib and two shoulders interposed between said flanges, said shoulders connecting said center rib and said flanges; b) a bullnose and a pair of shoulders interposed between said flanges, said shoulders connecting said bullnose to said flanges; c) a shoulder and an offset rib, said flanges comprising a long flange and a short flange, said short flange having an inner surface, said shoulder connecting said long flange and said offset rib, said wing extending beyond said short flange bonded to said inner surface of said short flange; d) a center portion, an offset rib, a first flange and a second flange, said center portion positioned between said offset rib and said second flange, said second flange extending from said center portion, said first flange extending from said offset rib in a direction opposite said second flange; e) a center portion, a short flange and a long flange, said center portion positioned between said long flange and said short flange to form a J-shape; f) two strips, said strips positioned so as to form a space between them; or g) two strips, said strips being joined by a living hinge.
36. The use of the improved paperbead as claimed in claim 35 wherein a formulated synthetic emulsion adhesive bonds the paper strip to the core.
NZ757542A 2018-03-02 Paperbead for protecting drywall corners NZ757542B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2959913A CA2959913C (en) 2017-03-03 2017-03-03 Paperbead for protecting drywall corners
US15/449,435 US10458122B2 (en) 2017-03-03 2017-03-03 Paperbead for protecting drywall corners
PCT/CA2018/000047 WO2018157235A1 (en) 2017-03-03 2018-03-02 Paperbead for protecting drywall corners

Publications (2)

Publication Number Publication Date
NZ757542A NZ757542A (en) 2025-02-28
NZ757542B2 true NZ757542B2 (en) 2025-06-04

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