US4748225A
Expired / Lapsed
US
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Synthetic resin modifier
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1987-05-21
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Granted: 1988-05-31
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Expires: 2007-05-21
Abstract
Abstract A synthetic resin modifier comprising an organopolysiloxane represented by General Formula (I): <IMAGE> (I) wherein the group represented by X consists of 2 to 40% by weight of a group represented by R1CO-, wherein R1 represents a saturated or unsaturated monovalent hydrocarbon group having 7 to 21 carbon atoms, and 60 to 98% by weight of a group represented by R2-O-CqH2q), wherein R2 represents a saturated or unsaturated monovalent hydrocarbon group having 7 to 21 carbon atoms. This modifier can be effective for any type of synthetic resins, imparting good lubricity and release properties to the surface of forms or molding products, including films, and improving the workability in the molding of synthetic resins.
Inventors
- 👤 Hiroshi Yoshioka
- 👤 Ichiro Ono
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08G; C08G77/00; C08G77/42; C08G77/46; B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; B29C33/64; C08G77/04; C08G77/38; C08G77/382; C08G77/385; C08L; C08L101/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
142 words
A synthetic resin modifier comprising an organopolysiloxane represented by General Formula (I): wherein the two types of diorganosiloxy units are arranged at random; the group represented by X consists of 2 to 40% by weight of a group represented by R 1 CO-, wherein R 1 represents a saturated or unsaturated monovalent hydrocarbon group having 7 to 21 carbon atoms, and 60 to 98% by weight of a group represented by R 2 --O-C q H 2q ) l , wherein R 2 represents a saturated or unsaturated monovalent hydrocarbon group having 7 to 21 carbon atoms, l represents an integer of 1 to 50, and q is a number of 2 to 4 on the average; m represents an integer of 1 to 50; n represents an integer of 1 to 20; and p represents an integer of 1 to 8.
Claim 2
Dependent Claim
142 words
A synthetic resin modifier comprising an organopolysiloxane represented by General Formula (I): wherein the two types of diorganosiloxy units are arranged at random; the group represented by X consists of 2 to 40% by weight of a group represented by R 1 CO-, wherein R 1 represents a saturated or unsaturated monovalent hydrocarbon group having 7 to 21 carbon atoms, and 60 to 98% by weight of a group represented by R 2 --O-C q H 2q ) l , wherein R 2 represents a saturated or unsaturated monovalent hydrocarbon group having 7 to 21 carbon atoms, l represents an integer of 1 to 50, and q is a number of 2 to 4 on the average; m represents an integer of 1 to 50; n represents an integer of 1 to 20; and p represents an integer of 1 to 8.
Claim 3
Dependent Claim
30 words
A synthetic resin modifier according to claim 1, wherein the integer m is an integer of 10 to 50 and the integer n is an integer of 1 to 15.
Claim 4
Dependent Claim
43 words
A synthetic resin modifier according to claim 1, wherein the group X consists of 2 to 20% by weight of said group R 1 CO- and 80 to 98% by weight of said group R 2 --OC q H 2q ) l .
Claim 5
Dependent Claim
19 words
A synthetic resin modifier according to claim 1, wherein the integer l represents an integer of 5 to 40.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-31 | 1999-11-30 | 2000-05-31 | $7700.00 | Window Closed / Lapsed |