US4675367A
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Silyl polyamides and method for their preparation
Assignee: General Electric Co
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Filing: 1986-05-08
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Granted: 1987-06-23
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Expires: 2006-05-08
Abstract
Abstract Silyl polyamides are prepared by reacting a silyl anhydride or imide, preferably a polysiloxane anhydride, with a lactam such as ε-caprolactam. The preferred materials are in the nature of A-B or A-B-A block polyamide polysiloxanes. They may be used as elastomers and adhesives or, in certain instances, in the formation of thermoset compositions.
Inventors
- 👤 Peter P. Policastro
- 👤 John E. Hallgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:44
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/42; C08G77/00; C08G77/42; C08G77/452; C08G77/455
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
180 words
An elastomeric silyl polyamide having the formula ##STR11## wherein: each Z 1 is independently hydrogen; a polyamideimide radical having the formula ##STR12## a siloxane radical having the formula ##STR13## a hydrocarbon or substituted hydrocarbon radical; C 1-8 alkoxy, alkenoxy or acyloxy; or a radial selected from the group consisting of hydroxy, halo, N(R 1 ) 2 , cyano, amido, carbamato, imidato, isocyanato, thioisocyanato, oximato, and ureido; at least one Z 1 having formula XI; R 1 is a hydrocarbon or substituted hydrocarbon radical; R 2 is a divalent aliphatic hydrocarbon or substituted hydrocarbon radical in which about 2-20 carbon atoms separate the carbonyl moiety and nitrogen atom; Z 2 is OM and Y is NH, or Z 2 and Y taken together are N; Z 3 is a polyamide end group; Z 6 is oxygen or C(R 5 ) 2 ; each R 5 is independently hydrogen, halo or a hydrocarbon or substituted hydrocarbon radical; M is alkyl, aryl or one equivalent of a cation; m is from 0 to about 2,000; and n is from 10 to about 2,000.
Claim 2
Dependent Claim
180 words
An elastomeric silyl polyamide having the formula ##STR11## wherein: each Z 1 is independently hydrogen; a polyamideimide radical having the formula ##STR12## a siloxane radical having the formula ##STR13## a hydrocarbon or substituted hydrocarbon radical; C 1-8 alkoxy, alkenoxy or acyloxy; or a radial selected from the group consisting of hydroxy, halo, N(R 1 ) 2 , cyano, amido, carbamato, imidato, isocyanato, thioisocyanato, oximato, and ureido; at least one Z 1 having formula XI; R 1 is a hydrocarbon or substituted hydrocarbon radical; R 2 is a divalent aliphatic hydrocarbon or substituted hydrocarbon radical in which about 2-20 carbon atoms separate the carbonyl moiety and nitrogen atom; Z 2 is OM and Y is NH, or Z 2 and Y taken together are N; Z 3 is a polyamide end group; Z 6 is oxygen or C(R 5 ) 2 ; each R 5 is independently hydrogen, halo or a hydrocarbon or substituted hydrocarbon radical; M is alkyl, aryl or one equivalent of a cation; m is from 0 to about 2,000; and n is from 10 to about 2,000.
Claim 3
Dependent Claim
13 words
A composition according to claim 1 wherein m is at least about 5.
Claim 4
Dependent Claim
38 words
A composition according to claim 2 wherein one or both terminal Z 1 groups have formula XI, all remaining Z 1 groups are methyl or phenyl, each R 5 is hydrogen and Z 6 is CH 2 .
Claim 5
Dependent Claim
20 words
A composition according to claim 3 wherein R 2 is a straight chain alkylene radical containing about 4-12 carbon atoms.
Claim 6
Dependent Claim
23 words
A composition according to claim 4 wherein R 2 is (CH 2 ) 5 , (CH 2 ) 11 or a mixture thereof.
Claim 7
Dependent Claim
15 words
A composition according to claim 5 wherein both terminal Z 1 groups have formula XI.
Claim 8
Independent Claim
191 words
A method for preparing a silyl polyamide which comprises reacting, in the presence of a catalytic amount of at least one basic reagent: (A) at least one lactam having the formula ##STR14## wherein R 2 is a divalent aliphatic hydrocarbon or substituted hydrocarbon radical in which about 20 carbon atoms separate the carbonyl moiety and nitrogen atom; with (B) at least one silyl anhydride or imide having the formula ##STR15## wherein: each Z 4 is independently hydrogen; a dicarboxylic acid anhydride or imide radical having the formula ##STR16## a siloxane radical having the formula ##STR17## a hydrocarbon or substituted hydrocarbon radical; C 1-8 alkoxy, alkenoxy, or acyloxy; or a radical selected from the group consisting of hydroxy, halo, N(R 1 ) 2 ; cyano, amido, carbamato, imidato, isocyanato, thioisocyanato, oximato and ureido; R 1 is a hydrocarbon or substituted hydrocarbon radical; R 4 is hydrogen or a lower alkyl or lower aryl radical; each R 5 is independently hydrogen, halo or a hydrocarbon or substituted hydrocarbon radical; Z 6 is oxygen or NR 4 ; and n is from 10 to about 2,000; at least one Z 4 having formula X.
Claim 9
Independent Claim
191 words
A method for preparing a silyl polyamide which comprises reacting, in the presence of a catalytic amount of at least one basic reagent: (A) at least one lactam having the formula ##STR14## wherein R 2 is a divalent aliphatic hydrocarbon or substituted hydrocarbon radical in which about 20 carbon atoms separate the carbonyl moiety and nitrogen atom; with (B) at least one silyl anhydride or imide having the formula ##STR15## wherein: each Z 4 is independently hydrogen; a dicarboxylic acid anhydride or imide radical having the formula ##STR16## a siloxane radical having the formula ##STR17## a hydrocarbon or substituted hydrocarbon radical; C 1-8 alkoxy, alkenoxy, or acyloxy; or a radical selected from the group consisting of hydroxy, halo, N(R 1 ) 2 ; cyano, amido, carbamato, imidato, isocyanato, thioisocyanato, oximato and ureido; R 1 is a hydrocarbon or substituted hydrocarbon radical; R 4 is hydrogen or a lower alkyl or lower aryl radical; each R 5 is independently hydrogen, halo or a hydrocarbon or substituted hydrocarbon radical; Z 6 is oxygen or NR 4 ; and n is from 10 to about 2,000; at least one Z 4 having formula X.
Claim 10
Dependent Claim
23 words
A method according to claim 7 wherein Z 6 is oxygen and the reaction temperature is within the range of about 90°-150° C.
Claim 11
Dependent Claim
27 words
A method according to claim 8 wherein one or both terminal Z 4 groups have formula X and all remaining Z 4 groups are methyl or phenyl.
Claim 12
Dependent Claim
20 words
A method according to claim 9 wherein R 2 is a straight chain alkylene radical containing about 4-12 carbon atoms.
Claim 13
Dependent Claim
23 words
A method according to claim 10 wherein R 2 is (CH 2 ) 5 , (CH 2 ) 11 or a mixture thereof.
Claim 14
Dependent Claim
15 words
A method according to claim 11 wherein both terminal Z 4 groups have formula X.
Claim 15
Dependent Claim
11 words
A thermoplastic silyl polyamide prepared by the method of claim 7.
Claim 16
Dependent Claim
11 words
A thermoplastic silyl polyamide prepared by the method of claim 9.
Claim 17
Dependent Claim
11 words
A thermoplastic silyl polyamide prepared by the method of claim 12.
Claim 18
Dependent Claim
42 words
A method for preparing a thermoset composition which comprises reacting a silyl polyamide according to claim 1, wherein a portion of the Z 1 values are ethylenically unsaturated groups, with at least one hydrosilane compound in the presence of a hydrosilation catalyst.
Claim 19
Dependent Claim
31 words
A method according to claim 16 wherein the hydrosilane compound contains at least two hydrosilane groups and the hydrosilation catalyst is prepared by reacting a platinum compound with a vinyl-substituted polysiloxane.
Claim 20
Dependent Claim
10 words
A thermoset composition prepared by the method of claim 16.
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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) | 1990-06-22 | 1990-12-22 | 1991-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-22 | 1994-12-22 | 1995-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-22 | 1998-12-22 | 1999-06-23 | $7700.00 | Window Closed / Lapsed |