US5120810A
Expired / Lapsed
US
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Adhesive composition
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1990-05-11
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Granted: 1992-06-09
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Expires: 2010-05-11
Abstract
Abstract This invention discloses an adhesive organopolysiloxane compositions which cure in the presence of addition reaction catalysts and adhere firmly to various materials when they harden comprising; (1) 100 parts by weight of an organopolysiloxane containing at least alkenyl groups bonded to silicon atoms in 1 molecule, (2) an organohydrogenpolysiloxane containing at least 3 hydrogen atoms bonded to silicon atoms in 1 molecule, in sufficient quantity to donate 0.5-10 hydrogen atoms bonded to silicon atoms to 1 alkenyl group in said 1st constituent, (3) 0.1-20 parts by weight of an organosilicone compound containing at least 1 hydrogen atom bonded to silicon atoms, at least 1 fluoroalkyl group or fluoroalkylether group bonded to silicon atoms via carbon atoms and at least 1 epoxy group and/or trialkoxysilyl group bonded to silicon atoms via carbon atoms in 1 molecule, and (4) platinum or a platinum compound in suitable quantity to act as a catalyst.
Inventors
- 👤 Hironao Fujiki
- 👤 Mikio Shiono
- 👤 Toshiaki Takahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:58
CPC Classifications
C; C09; C09J; C09J183/00; C09J183/04; C08; C08L; C08L83/00; C08L2666/00; C08L2666/28; C08L2666/44
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
127 words
An adhesive composition comprising: (1) 100 parts by weight of an organopolysiloxane containing at least 2 alkenyl groups bonded to silicon atoms in 1 molecule, (2) an organohydrogenpolysiloxane containing at least 3 hydrogen atoms bonded to silicon atoms in 1 molecule, in sufficient quantity to donate 0.5-10 hydrogen atoms bonded to silicon atoms to 1 alkenyl group in (1), (3) 0.1-20 parts by weight of an organosilicon compound containing at least 1 hydrogen atom bonded to silicon atoms, at least 1 fluoroalkyl group or fluoroalkylether group bonded to silicon atoms via carbon atoms and at least 1 epoxy group and/or trialkoxysilyl group bonded to silicon atoms via carbon atoms in 1 molecule, and (4) platinum or a platinum compound in suitable quantity to act as a catalyst.
Claim 2
Dependent Claim
127 words
An adhesive composition comprising: (1) 100 parts by weight of an organopolysiloxane containing at least 2 alkenyl groups bonded to silicon atoms in 1 molecule, (2) an organohydrogenpolysiloxane containing at least 3 hydrogen atoms bonded to silicon atoms in 1 molecule, in sufficient quantity to donate 0.5-10 hydrogen atoms bonded to silicon atoms to 1 alkenyl group in (1), (3) 0.1-20 parts by weight of an organosilicon compound containing at least 1 hydrogen atom bonded to silicon atoms, at least 1 fluoroalkyl group or fluoroalkylether group bonded to silicon atoms via carbon atoms and at least 1 epoxy group and/or trialkoxysilyl group bonded to silicon atoms via carbon atoms in 1 molecule, and (4) platinum or a platinum compound in suitable quantity to act as a catalyst.
Claim 3
Dependent Claim
16 words
The adhesive composition of claim 1, wherein the alkenyl groups of the (1) are vinyl groups.
Claim 4
Dependent Claim
25 words
The adhesive composition of claim 1, wherein all organic groups bonded to silicon atoms apart from alkenyl groups are either methyl or methyl and phenyl.
Claim 5
Dependent Claim
23 words
The adhesive composition of claim 1, wherein a viscosity of the organopolysiloxane of (1) is not less than 50 Centistokes at 25° C.
Claim 6
Dependent Claim
15 words
The adhesive composition of claim 4, wherein said viscosity lies within the range 100-500,000 Centistokes.
Claim 7
Dependent Claim
24 words
The adhesive composition of claim 1, wherein all organic groups bonded to silicon atoms except alkenyl groups are either methyl or methyl and phenyl.
Claim 8
Dependent Claim
43 words
The adhesive composition of claim 1, wherein an amount of the (2) used should be such that the quantity of hydrogen atoms bonded to silicon atoms in the 2nd constituent is 0.75-4 equivalents with respect to 1 alkenyl group in the 1st constituent.
Claim 9
Dependent Claim
11 words
The adhesive composition of claim 1, wherein (3) is organopolysiloxane derivative.
Claim 10
Dependent Claim
13 words
The adhesive composition of claim 8, wherein said organopolysiloxane delivative is organohydrogenpolysiloxane derivative.
Claim 11
Dependent Claim
16 words
The adhesive composition of claim 1, wherein the silicone skelton of the (3) is cyclic conformation.
Claim 12
Dependent Claim
18 words
The adhesive composition of claim 10, wherein the number of silicon atoms comprising the siloxane ring is 3-50.
Claim 13
Dependent Claim
28 words
The adhesive composition of claim 1, wherein the quantity of (3) used is 1-10 parts by weight with respect to 100 parts by weight of the 1st constituent.
Claim 14
Dependent Claim
28 words
The adhesive composition of claim 1, wherein the quantity of (4) lies within the range 0.1-500 ppm as platinum atoms with respect to the quantity of the (1).
Claim 15
Dependent Claim
17 words
The adhesive composition of claim 13, wherein said quantity of (4) lies within the range 1-200 ppm.
Claim 16
Dependent Claim
11 words
A cured product manufactured by curing the composition of claim 1.
References Cited (Backward Citations)
US4912188A
Cited
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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) | 1995-06-09 | 1995-12-09 | 1996-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-09 | 1999-12-09 | 2000-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-09 | 2003-12-09 | 2004-06-09 | $7700.00 | Window Closed / Lapsed |