Patent US4094847A successfully refreshed from Google Patents.
US4094847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomer modified melamine resins
Assignee: Formica Corp
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Filing: 1977-02-11
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Granted: 1978-06-13
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Expires: 1997-02-11
Abstract
Abstract A composition of matter comprising a mixture of a melamine/formaldehyde resin and an elastomer comprising either an ethylene/vinyl chloride copolymer containing amide groups or a polyether-based, 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
2026-11-06 14:44
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31591; Y10T428/31855; Y10T428/31859; Y10T428/31862; Y10T428/31866; Y10T428/31942; Y10T428/31949; Y10T428/31964
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
98 words
A composition of matter comprising a mixture of 1. an aqueous melamine/formaldehyde resin solution 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 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
98 words
A composition of matter comprising a mixture of 1. an aqueous melamine/formaldehyde resin solution 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 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
25 words
A composition of matter 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
21 words
A composition of matter according to claim 1 wherein said elastomer has a particle size of up to about 4,000 Angstroms.
Claim 5
Dependent Claim
21 words
A composition of matter according to claim 1 wherein said elastomer has a particle size of up to about 1,000 Angstroms.
Claim 6
Dependent Claim
13 words
A composition of matter according to claim 1 wherein said elastomer is (a).
Claim 7
Dependent Claim
13 words
A composition of matter according to claim 1 wherein said elastomer is (b).
Claim 8
Dependent Claim
25 words
A composition of matter 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
52 words
A composition of matter 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
38 words
A composition of matter 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
14 words
A composition of matter according to claim 1 in the form of an emulsion.
Claim 12
Dependent Claim
110 words
A method for the production of the composition of claim 1 which comprises I. forming an aqueous solution of a melamine/formaldehyde resin, Ii. forming an aqueous emulsion of A. an ethylene/vinyl chloride copolymer containing 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, Iii. blending said (I) with from about 2.5% to about 30.0%, by weight, based on the weight of the resin solids of (I), of said (II) with stirring and Iv. recovering the resultant emulsion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |