Patent US2609989A successfully refreshed from Google Patents.
Patent US4654262A successfully refreshed from Google Patents.
US4654262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin resin surface preparation
Assignee: ITT Inc
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Filing: 1985-04-10
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Granted: 1987-03-31
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Expires: 2005-04-10
Abstract
Abstract The use of a liquid coupling agent which is adapted to be applied to the surface of a polyolefin resin to modify said surface to render it highly receptive to adhesion. The coupling agent comprises a liquid carrier and an organofunctional silane compound. The coupling agent is used in concert with ultraviolet radiation.
Inventors
- 👤 Oscar Alonso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:34
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/04; B32B27/06; B32B27/32; B32B7/00; B32B7/04; B32B7/12; C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; B32B2270/00; B32B2309/00; B32B2309/04; B32B2310/00; B32B2310/08; B32B2310/0806; B32B2310/0831; B32B2323/00; B32B2323/04; B32B2323/043; C08J2323/00; C08J2323/02; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2809; Y10T428/2843; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31529; Y10T428/31652; Y10T428/31663; Y10T428/31667; Y10T428/31855
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
64 words
A novel composite structure comprising a layer of a polyolefin resin and a second superposed layer, the interface between said layers including an organic adhesive, and a coupling agent applied to the surface of said polyolefin resin to modify said surface to render it highly receptive to adhesion, said coupling agent comprising an organofunctional silane compound, said surface having been exposed to ultraviolet irradiation.
Claim 2
Dependent Claim
64 words
A novel composite structure comprising a layer of a polyolefin resin and a second superposed layer, the interface between said layers including an organic adhesive, and a coupling agent applied to the surface of said polyolefin resin to modify said surface to render it highly receptive to adhesion, said coupling agent comprising an organofunctional silane compound, said surface having been exposed to ultraviolet irradiation.
Claim 3
Dependent Claim
13 words
The composite structure of claim 1 wherein the polyolefin is high density polyethylene.
Claim 4
Dependent Claim
11 words
The composite structure of claim 1 wherein the polyolefin is polyethylene.
Claim 5
Dependent Claim
11 words
The composite structure of claim 1 wherein the polyolefin is polypropylene.
Claim 6
Dependent Claim
44 words
The composite structure of claim 1 wherein the organofunctional silane is selected from the group consisting of silane sulfonyl azides, vinyltriethoxysilane, vinyltrimethoxysilane, vinyl-tris(2-methoxyethoxysilane), vinyltriacetoxysilane, gamma-methacryloxypropyltrimethoxysilane, gamma-methacryloxypropyl-tris-(2-methoxyethoxy)silane, beta-(3,4-epoxycyclohexyl)ethyltrimethoxysilane, gamma-glycidoxypropyltrimethoxysilane, gamma-mercaptopropyltrimethoxysilane, gamma-mercaptopropyltriethoxysilane, gamma-aminopropyltriethoxysilane, aminoalkyl silicone solution, modified aminorganosilane, gamma-aminopropyltrimethoxysilane, N-beta-(aminoethyl)-gamma-aminopropyltrimethoxysilane, modified aminoorganosilane, triaminofunctional silane, and gamma-ureidopropyltriethoxysilane.
Claim 7
Dependent Claim
13 words
The composite structure of claim 1 wherein the adhesive is an epoxy resin.
Claim 8
Dependent Claim
20 words
The novel composite of claim 1 wherein said ultraviolet irradiation is carried out for from 1 to about 60 seconds.
Claim 9
Dependent Claim
50 words
The composite structure of claim 1 wherein the polyolefin comprises a blend of about 25 to about 85 parts by weight of crystalline thermoplastic polyolefin resin and about 75 to about 15 parts by weight of vulcanized monolefin copolymer rubber per 100 parts total weight of said resin and rubber.
Claim 10
Dependent Claim
36 words
The composite structure of claim 8 wherein the polyolefin is crystalline thermoplastic polypropylene having a vulcanized monoolefin copolymer rubber dispersed therein which rubber is the product from the polymerization of ethylene, propylene and a non-conjugated diene.
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) | 1990-03-30 | 1990-09-29 | 1991-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-30 | 1994-09-29 | 1995-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-30 | 1998-09-29 | 1999-03-31 | $7700.00 | Window Closed / Lapsed |