US3936341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive lacquer, process for its use and products thereof
Assignee: Solvay SA
•
Filing: 1974-03-06
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Granted: 1976-02-03
•
Expires: 1994-03-06
Abstract
Abstract An adhesive lacquer is provided which comprises tetrahydrofuran and an acrylate ester polymer containing at least 50 mol% of an acrylate ester. The adhesive lacquer is especially useful in joining a thermoplastic resin to a thermosetting resin. A layer of the adhesive lacquer preferably is first applied on the thermoplastic resin and the thermosetting resin is thereafter applied to the layer of adhesive laquer to effect the joining of the two resins.
Inventors
- 👤 Jean Nanoux
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:19
CPC Classifications
C; C09; C09D; C09D133/00; C09D133/04; C09D133/06; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
68 words
A process for joining a thermoplastic resin to a thermosetting resin, comprising applying a layer of an adhesive lacquer to the surface of the thermoplastic resin, said lacquer comprising tetrahydrofuran as a solvent and an acrylate ester polymer containing at least 50 mol % of an acrylate ester, and thereafter applying the thermosetting resin in uncured form to the layer of adhesive lacquer and curing the thermosetting resin.
Claim 2
Dependent Claim
68 words
A process for joining a thermoplastic resin to a thermosetting resin, comprising applying a layer of an adhesive lacquer to the surface of the thermoplastic resin, said lacquer comprising tetrahydrofuran as a solvent and an acrylate ester polymer containing at least 50 mol % of an acrylate ester, and thereafter applying the thermosetting resin in uncured form to the layer of adhesive lacquer and curing the thermosetting resin.
Claim 3
Dependent Claim
36 words
The process according to claim 1, wherein the thermoplastic resin is chosen from the group comprising vinyl polymers containing at least 50 mol % of vinyl chloride, polystyrene, and polymers based on acrylonitrile, butadiene and styrene.
Claim 4
Dependent Claim
14 words
Process according to claim 2, wherein the thermoplastic resin is a vinyl chloride polymer.
Claim 5
Dependent Claim
23 words
Process according to claim 1, wherein the surface of the thermoplastic resin is cleaned with a chlorinated hydrocarbon before applying the adhesive lacquer.
Claim 6
Dependent Claim
26 words
The process according to claim 1, wherein the adhesive lacquer is applied to the thermoplastic resin at the rate of 100 to 300 g/m 2 .
Claim 7
Dependent Claim
48 words
The process according to claim 1, wherein after having applied the layer of adhesive lacquer to the surface of the thermoplastic resin, the lacquer is dried until it does not contain more than 15% by weight of solvent, and the thermosetting resin is applied to the dry lacquer.
Claim 8
Dependent Claim
24 words
The process according to claim 6 wherein the lacquer contains a second solvent selected from the group consisting of amide solvents and sulfoxide solvents.
Claim 9
Dependent Claim
57 words
The process according to claim 6 wherein the lacquer contains a diluent selected from the group consisting of chlorinated hydrocarbons, ketones and alkyl esters, and the lacquer is dried on the thermoplastic resin until it does not contain more than 15% by weight of solvent and diluent, and the thermosetting resin is applied to the dry lacquer.
Claim 10
Dependent Claim
17 words
The process according to claim 6 wherein the thermoplastic resin layer is heated to dry the lacquer.
Claim 11
Dependent Claim
21 words
The process according to claim 1, wherein the thermoplastic resin coated with adhesive lacquer is shaped before applying the thermosetting resin.
Claim 12
Dependent Claim
18 words
The process according to claim 10 wherein the shaping of the thermoplastic resin is effected by vacuum forming.
Claim 13
Dependent Claim
14 words
The process according to claim 1, wherein the thermosetting resin is a polyester resin.
Claim 14
Dependent Claim
12 words
The process according to claim 12 wherein the polyester resin is reinforced.
Claim 15
Dependent Claim
15 words
The process according to claim 13, wherein the polyester resin is reinforced with glass fibers.
Claim 16
Dependent Claim
47 words
A process for joining a thermoplastic resin to a thermosetting resin by applying an adhesive lacquer to one of the two resins comprising using as the adhesive lacquer a composition comprising tetrahydrofuran and an acrylate ester polymer containing at least 50 mol % of an acrylate ester.
Claim 17
Dependent Claim
47 words
A process for joining a thermoplastic resin to a thermosetting resin by applying an adhesive lacquer to one of the two resins comprising using as the adhesive lacquer a composition comprising tetrahydrofuran and an acrylate ester polymer containing at least 50 mol % of an acrylate ester.
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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) | 1979-02-02 | 1979-08-04 | 1980-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-02 | 1983-08-04 | 1984-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-02 | 1987-08-04 | 1988-02-03 | $7700.00 | Window Closed / Lapsed |