US4293360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated sheet material for use in making decorative laminates
Assignee: Warren SD Co
•
Filing: 1978-11-16
•
Granted: 1981-10-06
•
Expires: 1998-11-16
Abstract
Abstract Disclosed is a coated sheet material comprising a release medium having thereon a gluable coating for use in making a decorative heat-and-pressure consolidated laminate. The gluable coating is transferred during the consolidation step from the release medium to the back side of the laminate, and the laminate can then be glued to a reinforcing substrate with conventional glues and without sanding the back of the laminate. The transferable gluable coating comprises a linear copolymer of (A) maleic anhydride or maleic acid or maleic acid salt and (B) ethylene or a vinyl monomer having a side chain of an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.
Inventors
- 👤 Fredrick A. Loft
- 👤 John O. H. Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:52
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; B32B37/00; B32B37/12; B32B37/1284; B32B37/14; B32B37/26; B32B2260/00; B32B2260/04; B32B2260/046; B32B2451/00; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866; Y10T428/3188; Y10T428/31895; Y10T428/31906
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
93 words
A coated sheet material for use in the preparation of decorative heat-and-pressure consolidated laminates, comprising a base paper over which is coated on both sides a release material useful in the manufacture of release paper and over each coating of release material a transferable, qluable coating comprising a linear copolymer of (A) maleic acid or maleic anhydride or maleic acid salt and (B) ethylene, or a vinyl monomer having one side chain of either an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.
Claim 2
Dependent Claim
93 words
A coated sheet material for use in the preparation of decorative heat-and-pressure consolidated laminates, comprising a base paper over which is coated on both sides a release material useful in the manufacture of release paper and over each coating of release material a transferable, qluable coating comprising a linear copolymer of (A) maleic acid or maleic anhydride or maleic acid salt and (B) ethylene, or a vinyl monomer having one side chain of either an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.
Claim 3
Dependent Claim
98 words
A coated sheet material for use in the preparation of decorative heat-and-pressure consolidated laminates, comprising a paper sheet coated on at least one side with a first layer of a copolymer of 1-octadecene and maleic anhydride and on top of the first layer a second layer of a transferable, gluable coating comprising a linear copolymer of (A) maleic acid or maleic anhydride or maleic acid salt and (B) ethylene, or a vinyl monomer having one side chain of either an alaphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.
Claim 4
Dependent Claim
98 words
A coated sheet material for use in the preparation of decorative heat-and-pressure consolidated laminates, comprising a paper sheet coated on at least one side with a first layer of a copolymer of 1-octadecene and maleic anhydride and on top of the first layer a second layer of a transferable, gluable coating comprising a linear copolymer of (A) maleic acid or maleic anhydride or maleic acid salt and (B) ethylene, or a vinyl monomer having one side chain of either an alaphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.
Claim 5
Dependent Claim
22 words
The coated sheet material according to claim 2, wherein the transferable, gluable coating is coated on both sides of the release medium.
Claim 6
Dependent Claim
44 words
The coated sheet material according to claim 3, wherein the transferable, gluable coating is coated on the release medium in an amount of from about 1/2 lb. to about 7 lbs. per ream of 3300 square feet on each side of the release medium.
Claim 7
Dependent Claim
26 words
The coated sheet material according to claims 2, 3 or 4, wherein component (B) of the copolymer of the transferable, gluable coating is provided by ethylene.
Claim 8
Dependent Claim
124 words
In a method of forming a decorative heat-and-pressure consolidated laminate by assembling between platens a plurality of superimposed plies of thermosetting resin impregnated sheets and a release medium having a transferable, gluable coating on the side of the release medium placed against an outermost ply, and applying heat and pressure through the platens to consolidate the laminate and to transfer the gluable coating from the release medium to the outermost ply, the improvement wherein the gluable coating comprises a linear copolymer of (A) maleic acid or maleic anhydride or maleic acid salt and (B) ethylene, or a vinyl monomer having one side chain of either an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.
Claim 9
Dependent Claim
124 words
In a method of forming a decorative heat-and-pressure consolidated laminate by assembling between platens a plurality of superimposed plies of thermosetting resin impregnated sheets and a release medium having a transferable, gluable coating on the side of the release medium placed against an outermost ply, and applying heat and pressure through the platens to consolidate the laminate and to transfer the gluable coating from the release medium to the outermost ply, the improvement wherein the gluable coating comprises a linear copolymer of (A) maleic acid or maleic anhydride or maleic acid salt and (B) ethylene, or a vinyl monomer having one side chain of either an aliphatic group with up to four carbon atoms or an alkoxy group with up to four carbon atoms.
Claim 10
Dependent Claim
39 words
The improved method of claim 6, wherein two laminates are consolidated between a pair of platens in back-to-back configuration with the release medium between the two laminates, and the release medium has the transferable, gluable coating on both sides.
Claim 11
Dependent Claim
35 words
The improved method of claim 6, wherein the transferable, gluable coating is coated on the release medium in an amount of from about 1/2 lb. to about 7 lbs. per ream of 3300 square feet.
Claim 12
Dependent Claim
25 words
The improved method of claim 6, wherein the release medium is provided by a paper sheet coated with a copolymer of 1-octadecene and maleic anhydride.
Claim 13
Dependent Claim
25 words
The improved method of claims 6, 7, 8 or 9, wherein component (B) of the copolymer of the transferable, gluable coating is provided by ethylene.
References Cited (Backward Citations)
US2866771A
Cited
US3156581A
Cited
US3520469A
Cited
US3583932A
Cited
USRE27644E
Cited
US3556835A
Cited
US3520861A
Cited
US4093458A
Cited
US4030955A
Cited
US4144120A
Cited
US4118541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |