US4209564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible foamed product with skin and process for its manufacture
Assignee: Toyota Motor Corp
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Filing: 1979-03-23
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Granted: 1980-06-24
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Expires: 1999-03-23
Abstract
Abstract A flexible foamed product with skin, characterized in that on the surface of the foamed product there is formed a skin composed of the reaction product of a linear urethane polymer, a polyol or an urethane prepolymer with an OH-terminal group compatible with the linear urethane polymer, and a blocked isocyanate; and the process for manufacturing such a product.
Inventors
- 👤 Takao Nomura
- 👤 Yoshio Taguchi
- 👤 Kazuo Kobayashi
- 👤 Isao Sakata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:05
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/14; C; C08; C08J; C08J9/00; C08J9/34; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/249988; Y10T428/249989; Y10T428/249991
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
41 words
A flexible foamed product having a skin, said skin being the cured reaction product of (a) a linear urethane polymer, (b) a polyol or an urethane prepolymer with an OH-terminal compatible with said linear urethane polymer, and (c) a blocked isocyanate.
Claim 2
Dependent Claim
41 words
A flexible foamed product having a skin, said skin being the cured reaction product of (a) a linear urethane polymer, (b) a polyol or an urethane prepolymer with an OH-terminal compatible with said linear urethane polymer, and (c) a blocked isocyanate.
Claim 3
Dependent Claim
17 words
Product of claim 1 wherein said linear urethane polymer has a weight average molecular weight of 10,000-100,000.
Claim 4
Dependent Claim
19 words
Product of claim 1 wherein said blocked isocyanate is bifunctional or polyfunctional; and the block-dissociating temperature is 50°-200° C.
Claim 5
Dependent Claim
16 words
Product of claim 3 wherein said blocked isocyanate has a block-dissociating temperature of about 145°-160° C.
Claim 6
Dependent Claim
25 words
Product of claim 1 wherein said blocked isocyanate is added in 1-30 parts by weight to 100 parts by weight of the linear urethane polymer.
Claim 7
Dependent Claim
21 words
Product of claim 1 wherein said OH-terminal urethane prepolymer or polyol is bifunctional or polyfunctional with weight average molecular weight 5,000-50,000.
Claim 8
Dependent Claim
28 words
Product of claim 1 wherein said OH-terminal urethane prepolymer or polyol is added in 1-50 parts by weight to 100 parts by weight of said linear urethane polymer.
Claim 9
Independent Claim
88 words
A method of making a flexible foamed product having a skin which comprises (1) applying to the inside walls of a mold a skin paint preparation comprising (a) a linear urethane polymer, (b) a polyol or an urethane prepolymer with an OH-terminal compatible with said linear urethane polymer, and (c) a blocked isocyanate, (2) charging into said mold a resin composition for core foaming, and (3) applying sufficient heat to the resulting molding so that said blocked isocyanate can react with the other components of said paint preparation.
Claim 10
Independent Claim
88 words
A method of making a flexible foamed product having a skin which comprises (1) applying to the inside walls of a mold a skin paint preparation comprising (a) a linear urethane polymer, (b) a polyol or an urethane prepolymer with an OH-terminal compatible with said linear urethane polymer, and (c) a blocked isocyanate, (2) charging into said mold a resin composition for core foaming, and (3) applying sufficient heat to the resulting molding so that said blocked isocyanate can react with the other components of said paint preparation.
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) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |