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US5112682A
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Primer for improving adhesion to plastics
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1989-02-08
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Granted: 1992-05-12
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Expires: 2009-02-08
Abstract
Abstract A primer comprising at least one selected from the group consisting of dyes and pigments, and, optionally, at least one selected from the group consisting of an organosilicon compound represented by Formula (I): <IMAGE> (I) wherein R1 represents a monovalent hydrocarbon group; R2 represents a substituted or unsubstituted monovalent hydrocarbon group; R3 represents X- or X-R4-, where X represents a monovalent hydrocarbon group containing an epoxy group, etc., and R4 represents a saturated divalent hydrocarbon group; and n is an integer of 0 to 2, and a partial hydrolyzate thereof. This primer can import a good adhesion to so-called hardly adherable materials such as polyolefin plastics.
Inventors
- 👤 Yoshio Inouye
- 👤 Takeo Inoue
- 👤 Toshihide Shimizu
- 👤 Ichiro Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:50
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/124; D; D06; D06P; D06P1/00; D06P1/44; D06P1/52; D06P1/5264; D06P1/5292; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2843; Y10T428/2848; Y10T428/31504; Y10T428/31507; Y10T428/3154; Y10T428/31652; Y10T428/31667; Y10T428/31725; Y10T428/31739; Y10T428/31786; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
201 words
In an assembly comprising a plastic article selected from the group consisting of polyethylene, polypropylene, polytetrafluorethylene, polyphenylene sulfide, polyethylene terephthalate, polyphenylene ethers, polybutylene terephthalate, polyacetal, polycarbonate and nylon articles, wherein an adhesive layer is deposited onto at least one surface of said article, the improvement comprising: a primer composition layer between said surface and said adhesive layer obtained by applying a solution or suspension of at least one azine dye selected from the group consisting of Basic Red 2, Solvent Black 5, Solvent Black 7, Acid Blue 59 and Acid Black 2; and at least one organosilicon compound represented by formula (I): ##STR6## wherein R 1 represents a C 1 -C 7 monovalent hydrocarbon group; R 2 represents a monovalent hydrocarbon group or a C 1 -C 3 alkoxylalkyl group; R 3 represents X-- or X--R 4 --, where X represents a C 1 -C 6 monovalent hydrocarbon group containing an epoxy group, a C 1 -C 6 substituted or unsubstituted amino group, an alkenyl group, an acryloyloxy group, a methacryloyloxy group, a mercapto group or a halogen atom, and R 4 represents a C 1 -C 5 saturated divalent hydrocarbon group; and n is an integer of 0 to 2.
Claim 2
Dependent Claim
201 words
In an assembly comprising a plastic article selected from the group consisting of polyethylene, polypropylene, polytetrafluorethylene, polyphenylene sulfide, polyethylene terephthalate, polyphenylene ethers, polybutylene terephthalate, polyacetal, polycarbonate and nylon articles, wherein an adhesive layer is deposited onto at least one surface of said article, the improvement comprising: a primer composition layer between said surface and said adhesive layer obtained by applying a solution or suspension of at least one azine dye selected from the group consisting of Basic Red 2, Solvent Black 5, Solvent Black 7, Acid Blue 59 and Acid Black 2; and at least one organosilicon compound represented by formula (I): ##STR6## wherein R 1 represents a C 1 -C 7 monovalent hydrocarbon group; R 2 represents a monovalent hydrocarbon group or a C 1 -C 3 alkoxylalkyl group; R 3 represents X-- or X--R 4 --, where X represents a C 1 -C 6 monovalent hydrocarbon group containing an epoxy group, a C 1 -C 6 substituted or unsubstituted amino group, an alkenyl group, an acryloyloxy group, a methacryloyloxy group, a mercapto group or a halogen atom, and R 4 represents a C 1 -C 5 saturated divalent hydrocarbon group; and n is an integer of 0 to 2.
Claim 3
Dependent Claim
73 words
The assembly according to claim 1, wherein R 1 represents a methyl group or an ethyl group, R 2 represents a methyl group or an ethyl group, R 3 represents a vinyl group, a glycidoxy group, a 3,4-epoxycylcohexylmethyl group, an amino group, a (beta-aminoethyl) amino group, a phenylamino group, an acryloyloxy group, a methacryloyloxy group, a mercapto group or a chlorine atom, and R 4 represents a methylene group or a trimethylene group.
Claim 4
Dependent Claim
22 words
The assembly according to claim 1, wherein said organosilicon compound represented by Formula (I) is a compound represented by the formula: ##STR7##
Claim 5
Dependent Claim
33 words
The assembly according of claim 1 wherein the organosilicon compound is contained in an amount of not more than 50 parts by weight based on 100 parts by weight of said azine dye.
Claim 6
Dependent Claim
33 words
The assembly according to claim 1, wherein said organosilicon compound is contained in an amount of from 0.01 to 20 parts by weight based on 100 parts by weight of said azine dye.
Claim 7
Dependent Claim
33 words
The assembly according to claim 5, wherein said organosilicon compound is contained in an amount of from 0.1 to 10 parts by weight based on 100 parts by weight of said azine dye.
Claim 8
Dependent Claim
15 words
The assembly according to claim 1, wherein said azine dye is dissolved in a solvent.
Claim 9
Dependent Claim
22 words
The assembly according to claim 7, wherein said azine dye is contained in a concentration of from 0.01 to 5% by weight.
Claim 10
Dependent Claim
19 words
The assembly according to claim 1, wherein the azine dye and said organosilicon compound are dissolved in a solvent.
Claim 11
Dependent Claim
28 words
The assembly according to claim 9, wherein said azine dye and said organosilicon compound are contained in a concentration of from 0.01 to 5% by weight in total.
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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) | 1995-05-12 | 1995-11-11 | 1996-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-05-12 | 1999-11-11 | 2000-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-05-12 | 2003-11-11 | 2004-05-12 | $7700.00 | Window Closed / Lapsed |