Patent US4992522A successfully refreshed from Google Patents.
US4992522A
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Polymer compatibilizers
Assignee: General Electric Co
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Filing: 1989-09-25
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Granted: 1991-02-12
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Expires: 2009-09-25
Abstract
Abstract There is provided a compatibilizer comprised of essentially linear molecules terminated with an unsaturated radical on one end and a condensable radical on the other end and represented by general formula: R.sub.a.sup.1 --X--R.sub.b.sup.2 wherein X is a tetravelent organic or silicon containing group; R 1 is selected from the group consisting of C 1-12 alkyl and C 2-12 alkenyl; R 2 is a C 1-10 alkylamine; "a" is less than 4 and greater than or equal to 1; "b" is less than 4 and greater than or equal to 1; and a+b is equal to 4.
Inventors
- 👤 David A. Williams
- 👤 Paul R. Willey
- 👤 Brian J. Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:46
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/26; C07F7/08; C07F7/0834; C07F7/0838; C08G77/045; C08G77/20; C08L; C08L101/00; C08L2205/00; C08L2205/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
66 words
A compatibilizer comprised of a linear molecule represented by the general formula: ##STR7## wherein R 3 is C 2-12 alkenyl; R 4 is a C 1-10 alkylamine; R 5 is selected from the class consisting of hydrogen and C 1-12 alkyl; --(R 2 5 Y)-- is a difunctional siloxane group or a difunctional alkylene or oxyalkylene group, and "c" a number from 1 to about 100.
Claim 2
Dependent Claim
66 words
A compatibilizer comprised of a linear molecule represented by the general formula: ##STR7## wherein R 3 is C 2-12 alkenyl; R 4 is a C 1-10 alkylamine; R 5 is selected from the class consisting of hydrogen and C 1-12 alkyl; --(R 2 5 Y)-- is a difunctional siloxane group or a difunctional alkylene or oxyalkylene group, and "c" a number from 1 to about 100.
Claim 3
Dependent Claim
53 words
The compatibilizer according to claim 1 wherein the compatibilizer is represented by the formula: ##STR8## wherein R 3 is C 2-12 alkenyl; R 4 is a C 1-10 alkylamine; R 5 is selected from the class consisting of hydrogen and C 1-12 alkyl; and "d" is a number from 1 to about 99.
Claim 4
Dependent Claim
10 words
The compatibilizer of claim 2 wherein R 3 is vinyl.
Claim 5
Dependent Claim
10 words
The compatibilizer of claim 1 wherein R 4 is propylamine.
Claim 6
Dependent Claim
9 words
The compatibilizer of claim 2 wherein "d" is 1.
Claim 7
Dependent Claim
16 words
The compatibilizer of claim 2 wherein "d" is a number ranging from 1 to about 30.
Claim 8
Dependent Claim
16 words
The compatibilizer of claim 6 wherein "d" is a number ranging from 9 to about 12.
Claim 9
Dependent Claim
20 words
A process for producing a compatibilizer comprising the step of equilibrating bis(aminoalkyl)disoloxanes with divinyltetramethyldisiloxane in the presence of tetraalkylammonium hydroxide.
Claim 10
Dependent Claim
20 words
A process for producing a compatibilizer comprising the step of equilibrating bis(aminoalkyl)disoloxanes with divinyltetramethyldisiloxane in the presence of tetraalkylammonium hydroxide.
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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) | 1994-02-11 | 1994-08-13 | 1995-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-11 | 1998-08-13 | 1999-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-11 | 2002-08-13 | 2003-02-12 | $7700.00 | Window Closed / Lapsed |