US4098944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface spray coating of latex foams
Assignee: GE Chemicals Inc
•
Filing: 1976-02-23
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Granted: 1978-07-04
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Expires: 1996-02-23
Abstract
Abstract Low density latex foams are improved in abrasion resistance, wear character and water resistance by spray coating the surface with a coating composition comprising a carboxylated styrene butadiene latex and from 5 to 100 parts per hundred parts latex solids of a hydrocarbon wax.
Inventors
- 👤 Richard Pollock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:27
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08L; C08L13/00; C08L13/02; D; D06; D06N; D06N3/00; D06N3/0056; D06N3/0061; D06N3/04; D06N3/10; C08J2321/00; Y; Y10; Y10S; Y10S526/00; Y10S526/93; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/249987; Y10T428/249991; Y10T428/249992; Y10T428/249993; Y10T442/00; Y10T442/60; Y10T442/647; Y10T442/652
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
66 words
In a latex foam-backed fabric structure comprising a fabric having coated on the undersurface thereof an elastomeric latex foam, the improvement wherein the surface of the foam is spray coated with from 20 to 90 g/sq. meter of a coating latex composition comprising a carboxylated styrene-butadiene latex and from 5 to 100 parts by weight based on 100 parts of latex solids of a hydrocarbon wax.
Claim 2
Dependent Claim
66 words
In a latex foam-backed fabric structure comprising a fabric having coated on the undersurface thereof an elastomeric latex foam, the improvement wherein the surface of the foam is spray coated with from 20 to 90 g/sq. meter of a coating latex composition comprising a carboxylated styrene-butadiene latex and from 5 to 100 parts by weight based on 100 parts of latex solids of a hydrocarbon wax.
Claim 3
Dependent Claim
38 words
The latex foam-backed fabric structure of claim 1 wherein said carboxylated styrene-butadiene latex consists of about 50% by weight styrene, from 2 to 20% by weight copolymerizable carboxylic monomer and correspondingly from 48 to 30% by weight butadiene.
Claim 4
Dependent Claim
53 words
The latex foam-backed fabric structure of claim 1 wherein said carboxylated styrene-butadiene latex consists of about 50% by weight styrene, from 2 to 20% by weight of a copolymerizable carboxylic monomer selected from the group consisting of itaconic acid, citraconic acid and acrylic acid, and correspondingly from 48 to 30% by weight butadiene.
Claim 5
Independent Claim
86 words
A method for providing a latex foam structure having an abrasion and water resistant surface comprising the steps of (1) providing a wet latex foam structure having a skinned surface, (2) spray coating said skinned surface with from 20 to 90 g/sq meter of a coating latex composition comprising a carboxylated styrene-butadiene latex and from 5 to 100 parts by weight, based on 100 parts of latex solids, of a hydrocarbon wax, and (3) air drying the resulting coated latex foam structure at an elevated temperature.
Claim 6
Independent Claim
86 words
A method for providing a latex foam structure having an abrasion and water resistant surface comprising the steps of (1) providing a wet latex foam structure having a skinned surface, (2) spray coating said skinned surface with from 20 to 90 g/sq meter of a coating latex composition comprising a carboxylated styrene-butadiene latex and from 5 to 100 parts by weight, based on 100 parts of latex solids, of a hydrocarbon wax, and (3) air drying the resulting coated latex foam structure at an elevated temperature.
Claim 7
Dependent Claim
50 words
The method of claim 3, wherein said carboxylated styrene-butadiene latex consists of about 50% by weight styrene, from 2 to 20% by weight of a copolymerizable carboxylic monomer selected from the group consisting of itaconic acid, citraconic acid and acrylic acid, and correspondingly from 48 to 30% by weight butadiene.
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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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |