Patent US5276086A successfully refreshed from Google Patents.
US5276086A
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Adhesive compositions
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1992-11-25
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Granted: 1994-01-04
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Expires: 2012-11-25
Abstract
Abstract Adhesive compositions of this invention are characterized by the addition of certain silane compounds as adhesion promoters to addition curing type compositions which comprise a diorganopolysiloxane containing alkenyl groups bonded to silicon atoms and an organohydrogen polysiloxane containing hydrogen atoms bonded to silicon atoms, wherein the adhesion promoting silane compound, is of the formula: (* CHEMICAL STRUCTURE *) (1) wherein R1 and R2 are either hydrogen atoms or lower alkyl groups, R3 and R4 are preferably lower alkyl groups and a and n are integers from 0 to 2.
Inventors
- 👤 Masatoshi Arai
- 👤 Yoshifumi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:36
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5415; C08K5/5419; C09; C09J; C09J183/00; C09J183/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/20; C08G77/22; C08G77/24; C08G77/70; C08L2666/00; C08L2666/28; C08L2666/44
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
135 words
An adhesive composition comprising (A) a diorganopolysiloxane which contains on average per molecule at least two alkenyl groups which are bonded to silicon atoms, (B) an organohydrogen polysiloxane which contains on average per molecule at least three hydrogen atoms bonded to silicon atoms, (C) a silane compound of the formula (1): ##STR4## wherein R 1 and R 2 are hydrogen or alkyl and can be the same or different, each R 3 is independently a substituted or an unsubstituted monovalent hydrocarbon group, R 4 is alkyl or alkoxyalkyl, a is an integer from 0 to 2, and n is an integer from 0 to 2, and (D) an addition reaction catalyst, the amounts of A, B and D being effective to provide an addition-curing type composition and of C being effective as an adhesion promoter.
Claim 2
Dependent Claim
135 words
An adhesive composition comprising (A) a diorganopolysiloxane which contains on average per molecule at least two alkenyl groups which are bonded to silicon atoms, (B) an organohydrogen polysiloxane which contains on average per molecule at least three hydrogen atoms bonded to silicon atoms, (C) a silane compound of the formula (1): ##STR4## wherein R 1 and R 2 are hydrogen or alkyl and can be the same or different, each R 3 is independently a substituted or an unsubstituted monovalent hydrocarbon group, R 4 is alkyl or alkoxyalkyl, a is an integer from 0 to 2, and n is an integer from 0 to 2, and (D) an addition reaction catalyst, the amounts of A, B and D being effective to provide an addition-curing type composition and of C being effective as an adhesion promoter.
Claim 3
Dependent Claim
18 words
A composition of claim 1, wherein in component A, the alkenyl groups are vinyl, allyl, 1-butenyl or 1-hexenyl.
Claim 4
Dependent Claim
35 words
A composition of claim 1, wherein the organo groups of the diorganopolysiloxane component A are alkyl groups or haloalkyl groups and the alkenyl groups of the diorganopolysiloxane component A are vinyl, allyl, 1-butenyl or 1-hexenyl.
Claim 5
Dependent Claim
17 words
A composition of claim 1, wherein component A has a viscosity at 25° C. of 50-100,000 cp.
Claim 6
Dependent Claim
18 words
A composition of claim 1, wherein in component B the organo groups are alkyl groups or haloalkyl groups.
Claim 7
Dependent Claim
17 words
A composition of claim 1, wherein component B has a viscosity at 25° C. of 0.5-10,000 cp.
Claim 8
Dependent Claim
30 words
A composition of claim 1, wherein in component C, R 3 is alkyl, aryl, alkenyl, aralkyl or one of the foregoing groups having some or all H-atoms replaced by halo.
Claim 9
Dependent Claim
390 words
A composition of claim 1, wherein component C is one of the following compounds (MeO) 3 Si--CH 2 --COOMe (MeO) 3 Si--CH 2 --COOEt (MeO) 3 Si--CH 2 --COOPr (MeO) 3 Si--CH 2 --COOC 8 H 1 7 (MeO) 3 Si--CH 2 --COOph (MeO) 3 Si--CH 2 --COOCy (MeO) 2 (Me)--Si--CH 2 --COOMe (MeO) 2 (Me)--Si--CH 2 --COOEt (MeO) 2 (Me)--Si--CH 2 --COOPr (MeO) 2 (Me)--Si--CH 2 --COOC 8 H 1 7 (MeO) 2 (Me)--Si--CH 2 --COOph (MeO) 2 (Me)--Si--CH 2 --COOCy (MeO) (Me) 2 --Si--CH 2 --COOMe (MeO) (Me) 2 --Si--CH 2 --COOEt (MeO) (Me) 2 --Si--CH 2 --COOPr (MeO) (Me) 2 --Si--CH 2 --COOC 8 H 1 7 (MeO) (Me) 2 --Si--CH 2 --COOPh (MeO) (Me) 2 --Si--CH 2 --COOCy (EtO) 3 Si--CH 2 --COOMe (EtO) 3 Si--CH 2 --COOEt (EtO) 3 Si--CH 2 --COOPr (EtO) 3 Si--CH 2 --COOBu (EtO) 3 Si--CH 2 --COOC 8 H 1 7 (EtO) 3 Si--CH 2 --COOph (EtO) 3 Si--CH 2 --COOCy (EtO) 2 (Me)--Si--CH 2 --CooMe (EtO) 2 (Me)--Si--CH 2 --COOEt (EtO) 2 (Me)--Si--CH 2 --COOPr (MeO) 3 Si--CH(Me)--COOMe (MeO) 3 Si--CH(Me)--COOEt (MeO) 3 Si--CH(Me)--COOPr (MeO) 3 Si--CH(Me)--COOBu (MeO) 3 Si--CH(Me)--COOC 8 H 1 7 (MeO) 3 Si--CH(Me)--COOCH 2 CH (Et) C 4 H 9 (MeO) 3 Si--CH(Me)--COOPh (MeO) 2 (Me) Si--CH(Me)--COOMe (MeO) 2 (Me) Si--CH(Me)--COOEt (MeO) 2 (Me) Si--CH(Me)--COOBu (MeO) 2 (Me) Si--CH(Me)--COOCH 2 CH (Et) C 4 H 9 (MeO) 2 (Me) Si--CH(Me)--COOPh (MeO) (Me) 2 Si--CH(Me)--COOMe (MeO) (Me) 2 Si--CH(Me)--COOEt (MeO) (Me) 2 Si--CH(Me)--COOC 8 H 1 7 (MeO) (Me) 2 Si--CH(Me)--COOph (MeO) 2 (Ph) Si--CH(Me)--COOMe (MeO) 2 (Ph) Si--CH(Me)--COOEt (MeO) 2 (Ph) Si--CH(Me)--COOC 8 H 1 7 (MeO) 2 (Et) Si--CH(Me)--COOMe (MeO) 2 (Et) Si--CH(Me)--COOEt (MeO) 2 (Et) Si--CH(Me)--COOBu (EtO) 3 Si--CH(Me)--COOMe (EtO) 3 Si--CH(Me)--COOEt (EtO) 3 Si--CH(Me)--COOBu (EtO) 3 Si--CH(Me)--COOCH 2 CH (Et) C 4 H 9 (EtO) 2 (Me) Si--CH(Me)--COOMe (EtO) 2 (Me) Si--CH(Me)--COOEt (EtO) 2 (Me) Si--CH(Me)--COOBu (EtO) 2 (Me) Si--CH(Me)--COOCH 2 CH (Et) C 4 H 9 (EtO) 2 (Me) Si--CH(Me)--COOMe (EtO) 2 (Me) Si--CU(Me)--COOEt (MeO) 3 Si--CH(Et)--COOMe (MeO) 3 Si--CH(Et)--COOEt (MeO) 2 (Me) Si--CH(Et)--COOMe (BuO) 3 Si--CH 2 --COOMe (BuO) 3 Si--CH 2 --COOEt (C 8 H 17 O) 3 Si--CH 2 COOEt (MeO) 3 Si--(CH 2 ) 2 --COOMe (MeO) 3 Si--(CH 2 ) 2 --COOEt (MeO) 3 Si--(CH 2 ) 3 --COOMe (MeO) 3 Si--(CH 2 ) 3 --COOEt
Claim 10
Dependent Claim
61 words
A composition containing an amount of component B sufficient to provide 0.5 to 10 equivalents of H atoms bonded to Si atoms per equivalent of alkenyl groups bonded to Si atoms in component A, an amount of component C which is 0.01 to 10 weight parts per 100 weight parts of component A, and a catalytically effective amount of component D.
Claim 11
Dependent Claim
61 words
A composition containing an amount of component B sufficient to provide 0.5 to 10 equivalents of H atoms bonded to Si atoms per equivalent of alkenyl groups bonded to Si atoms in component A, an amount of component C which is 0.01 to 10 weight parts per 100 weight parts of component A, and a catalytically effective amount of component D.
Claim 12
Dependent Claim
11 words
A cured product prepared by curing a composition of claim 1.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-01-03 | 1997-07-05 | 1998-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-03 | 2001-07-05 | 2002-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-03 | 2005-07-05 | 2006-01-04 | $7700.00 | Window Closed / Lapsed |