US5006581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin composition
Assignee: Polyplastics Co Ltd
•
Filing: 1987-12-11
•
Granted: 1991-04-09
•
Expires: 2007-12-11
Abstract
Abstract A synthetic resin composition, having a high toughness and a wear resistance, comprises a synthetic resin with solubility parameter δ9.5 cal1/2 cm 31 3/2 or higher and a modifier with solubility parameter δ8.5 cal 1/2 cm -3/2 or lower and dispersed therein, characterized in that a silicon containing copolyester, being a block copolymer consisting of 1˜90% by weight of siloxane segment represented by the undermentioned general formula (A) and 99˜1% by weight of polyester segment represented by the undermentioned general formula (B), the degree of polymerization of siloxane segment being 1˜2,000, and that of polyester segment 1˜1,000, is added to be mixed therewith as a dispersibility improver: ##STR1## (In this formula, m denotes a number of 1˜2,000.) ##STR2## (In this formula, R 1 designates one or two or more members selected from among aromatic divalent radicals having 6˜12 carbon atoms or aliphatic divalent radicals having 4˜20 carbon atoms, and R 2 from among aromatic divalent radicals having 6˜20 carbon atoms or aliphatic divalent radicals having 2˜20 carbon atoms; and n stands for a number of 1˜1,000).
Inventors
- 👤 Toshio Nakane
- 👤 Kenji Hijikata
- 👤 Yukihiko Kageyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:46
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08L; C08L75/00; C08L75/04; C08L101/00; C08L63/00; C08L67/00; C08L67/02; C08L77/00; Y; Y10; Y10S; Y10S525/00; Y10S525/931
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
164 words
A synthetic resin composition which comprises a resin dispersion of a synthetic resin having a solubility parameter of 9.5 cal 1/2 cm -3/2 or higher, a modifier having a solubility parameter of 8.5 cal 1/2 cm -3/2 or lower, and a silicon-containing copolyester being a block copolymer consisting of (a) 1 to 90% by weight of siloxane segment ##STR6## wherein m is a number between 1 and 2,000, and (b) 99 to 1% by weight of polyester segment represented by the following formula: ##STR7## wherein n is a number between 1 to 1,000, R 1 is selected from aromatic divalent radicals having 6 to 12 carbon atoms, or aliphatic divalent radicals having 4 to 20 carbon atoms, and R 2 is selected from divalent radical shaving 6 to 20 carbon atoms, or aliphatic divalent radicals having 2 to 20 carbon atoms, and wherein the degree of polymerization of the siloxane segment and the polyester segment is 1 to 2,000 and 1 to 1,000 respectively.
Claim 2
Dependent Claim
164 words
A synthetic resin composition which comprises a resin dispersion of a synthetic resin having a solubility parameter of 9.5 cal 1/2 cm -3/2 or higher, a modifier having a solubility parameter of 8.5 cal 1/2 cm -3/2 or lower, and a silicon-containing copolyester being a block copolymer consisting of (a) 1 to 90% by weight of siloxane segment ##STR6## wherein m is a number between 1 and 2,000, and (b) 99 to 1% by weight of polyester segment represented by the following formula: ##STR7## wherein n is a number between 1 to 1,000, R 1 is selected from aromatic divalent radicals having 6 to 12 carbon atoms, or aliphatic divalent radicals having 4 to 20 carbon atoms, and R 2 is selected from divalent radical shaving 6 to 20 carbon atoms, or aliphatic divalent radicals having 2 to 20 carbon atoms, and wherein the degree of polymerization of the siloxane segment and the polyester segment is 1 to 2,000 and 1 to 1,000 respectively.
Claim 3
Dependent Claim
20 words
A synthetic resin composition as in claim 1, wherein the synthetic resin contains at least one thermoplastic or thermosetting resin.
Claim 4
Dependent Claim
63 words
A synthetic resin composition as in claim 2, wherein said thermoplastic resin is at least one selected from the group consisting of polyester, polyamide, polyester amide, polyurethane, polyvinyl chloride, polycarbonate, polyacetal, polyvinylidene chloride, polyacrylonitrile, polymethacrylonitrile, polymethyl acrylate, polyvinyl alcohol, and cellulose, and wherein said thermosetting resin is at least one selected from the group consisting of urea resin, epoxy resin, and phenol resin.
Claim 5
Dependent Claim
19 words
The synthetic resin composition as in claim 2, wherein sia dsynthetic resin is selected from polyester and polyamide resins.
Claim 6
Dependent Claim
26 words
The synthetic resin composition as in claim 4, wherein the polyester resin is polyalkylene terephathalate havin an aliphatic alkylene chang of 2 to 4 carbon atoms.
Claim 7
Dependent Claim
26 words
The synthetic resin composition as inc laim 1, wherein the modifier is selected from homopolymers or copolymers of polytetrafluoroethylene, polychlorotrifluoroethylene, polydimethyl silicone polyisobutylene, polyethylene, and polypropylene.
Claim 8
Dependent Claim
26 words
The synthetic resin composition as inc laim 1, wherein the modifier is selected from homopolymers or copolymers of polytetrafluoroethylene, polychlorotrifluoroethylene, polydimethyl silicone polyisobutylene, polyethylene, and polypropylene.
Claim 9
Dependent Claim
14 words
The synthetic resin composition as in claim 1, wherein the modifier is mineral oil.
References Cited (Backward Citations)
US3236914A
Cited
US3691257A
Cited
US3701815A
Cited
US3861915A
Cited
US3935154A
Cited
US4024100A
Cited
US3962299A
Cited
US4090996A
Cited
US4505982A
Cited
US4348510A
Cited
EP0119150A1
Cited
US4558096A
Cited
US4616042A
Cited
US4703075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |