Patent US4112169A successfully refreshed from Google Patents.
US4112169A
Expired / Lapsed
US
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Elastomer modified melamine resin containing laminates
Assignee: Formica Corp
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Filing: 1977-02-11
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Granted: 1978-09-05
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Expires: 1997-02-11
Abstract
Abstract A heat and pressure consolidated structure comprising, in superimposed relationship, (A) a self-supporting substrate and (B) a decorative, α-cellulose paper sheet impregnated with a resin composition comprising A mixture of a melamine/formaldehyde resin and an elastomer comprising either an ethylene/vinyl chloride copolymer containing amide groups or a polyurethane resin containing carboxyl groups, is disclosed.
Inventors
- 👤 Kenneth Robert Huffman
- 👤 Donald James Casey
- 👤 Walter Moreland Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:24
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/04; B32B21/06; B32B21/02; B44; B44C; B44C5/00; B44C5/04; B44C5/0469; D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/35; D21H17/46; D21H17/47; D21H17/49; D21H17/51; D21H17/54; D21H17/57; B32B2317/00; B32B2317/12; B32B2317/125; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/24893; Y10T428/24934; Y10T428/25; Y10T428/254; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866; Y10T428/31942; Y10T428/31949; Y10T428/31964
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
158 words
A heat and pressure consolidated article comprising (A) a self-supporting substrate and (B) a decorative, cellulosic paper sheet having a basis weight of at least about 40 pounds per 3,000 square foot ream, containing at least about 60% α-cellulose and being impregnated with a composition of matter comprising a mixture of (1) an aqueous melamine/formaldehyde resin solution wherein the melamine to formaldehyde ratio thereof ranges from about 1:1.6 to about 1:2.5 and (2) from about 2.5 to about 30.0%, by weight, based on the weight of the resin solids of (1), of an elastomer comprising (a) an ethylene/vinyl chloride copolymer containing a comonomer supplying from about 0.5 to about 7.0%, by weight, based on the total weight of (a), of amide groups or (b) a polyurethane resin containing from about 3.0 to about 10.0%, by weight, based on the total weight of (b), of carboxyl groups, said elastomer having a particle size of up to about 20,000 Angstroms.
Claim 2
Dependent Claim
158 words
A heat and pressure consolidated article comprising (A) a self-supporting substrate and (B) a decorative, cellulosic paper sheet having a basis weight of at least about 40 pounds per 3,000 square foot ream, containing at least about 60% α-cellulose and being impregnated with a composition of matter comprising a mixture of (1) an aqueous melamine/formaldehyde resin solution wherein the melamine to formaldehyde ratio thereof ranges from about 1:1.6 to about 1:2.5 and (2) from about 2.5 to about 30.0%, by weight, based on the weight of the resin solids of (1), of an elastomer comprising (a) an ethylene/vinyl chloride copolymer containing a comonomer supplying from about 0.5 to about 7.0%, by weight, based on the total weight of (a), of amide groups or (b) a polyurethane resin containing from about 3.0 to about 10.0%, by weight, based on the total weight of (b), of carboxyl groups, said elastomer having a particle size of up to about 20,000 Angstroms.
Claim 3
Dependent Claim
23 words
An article according to claim 1 wherein the percentage of said (2) ranges from about 5.0% to about 25.0%, by weight, same basis.
Claim 4
Dependent Claim
19 words
An article according to claim 1 wherein said elastomer has a particle size of up to about 4,000 Angstroms.
Claim 5
Dependent Claim
19 words
An article according to claim 1 wherein said elastomer has a particle size of up to about 1,000 Angstroms.
Claim 6
Dependent Claim
11 words
An article according to claim 1 wherein said elastomer is (a).
Claim 7
Dependent Claim
11 words
An article according to claim 1 wherein said elastomer is (b).
Claim 8
Dependent Claim
23 words
An article according to claim 1 wherein said (a) contains from about 1.0 to about 5.0%, by weight, same basis, of amide groups.
Claim 9
Dependent Claim
50 words
An article according to claim 5 wherein said elastomer contains from about 1.0 to about 5.0%, by weight, same basis, of amide groups, has a particle size of up to about 1,000 Angstroms and is present in a range of from about 5.0 to about 25.0%, by weight, same basis.
Claim 10
Dependent Claim
36 words
An article according to claim 6 wherein said elastomer has a particle size of up to about 1,000 Angstroms and is present in a range of from about 5.0 to about 25.0%, by weight, same basis.
Claim 11
Dependent Claim
176 words
A method for the production of the article of claim 1 which comprises heat and pressure consolidating, in superimposed relationship, (A) a self-supporting substrate and (B) a decorative, cellulosic paper sheet having a basis weight of at least about 40 pounds per 3,000 square foot ream, containing at least about 60% α-cellulose and being impregnated with a composition of matter comprising a mixture of (1) an aqueous melamine/formaldehyde resin solution wherein the melamine to formaldehyde ratio thereof ranges from about 1:1.6 to about 1:2.5 and (2) from about 2.5 to about 30.0%, by weight, based on the weight of the resin solids of (1), of an elastomer comprising (a) an ethylene/vinyl chloride copolymer containing a comonomer supplying from about 0.5 to about 7.0%, by weight, based on the total weight of (a), of amide groups or (b) a polyurethane resin containing from about 3.0 to about 10.0%, by weight, based on the total weight of (b) of carboxyl groups, said elastomer having a particle size of up to about 20,000 Angstroms, and recovering the resultant product.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |