Patent US3650814A successfully refreshed from Google Patents.
US3650814A
Expired / Lapsed
US
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Process for preparing moldable thermoplastic polymer particles
Assignee: Union Carbide Corp
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Filing: 1969-10-09
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Granted: 1972-03-21
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Expires: 1989-10-09
Abstract
Abstract Thermoplastic polymers can be treated directly with an organofunctional silane coupling agent and a resinous copolymer of ethylene and acrylic and/or methacrylic acid so as to enhance their bonding to inorganic oxide substrates thereby providing moldable products with superior physical properties heretofore unattainable.
Inventors
- 👤 John A Elder Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08J; C08J3/00; C08J5/00; C08J5/04; C08J5/10; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995; Y10T428/2998; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
15 words
The process of claim 1 wherein (b) is a copolymer of ethylene and acrylic acid.
Claim 2
Dependent Claim
9 words
The product formed by the process of claim 1.
Claim 3
Dependent Claim
9 words
The product produced by the process of claim 2.
Claim 4
Dependent Claim
13 words
The product produced by the process of claim 2 wherein (a) is gamma-methacryloxypropyltrimethoxysilane.
Claim 5
Dependent Claim
13 words
The product produced by the process of claim 2 wherein (a) is gamma-aminopropyltriethoxysilane.
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US3086885A
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US3264272A
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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) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |