Patent US4708983A successfully refreshed from Google Patents.
US4708983A
Expired / Lapsed
US
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Arylene sulfide polymers of improved impact strength
Assignee: Phillips Petroleum Co
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Filing: 1986-06-18
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Granted: 1987-11-24
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Expires: 2006-06-18
Abstract
Abstract A polymer composition is provided comprising at least one poly(arylene sulfide), at least one polysiloxane, at least one trialkoxysilane, and at least one solid, resinous polyolefin. Molded objects made of this polymer composition have greater impact strength than those made of poly(arylene sulfide), preferably poly(phenylene sulfide). In one embodiment, an additive composition comprising at least one polysiloxane, at least one trialkoxysilane and at least one solid, resinous polyolefin is provided. The additives can be blended with poly(arylene sulfide) so as to improve its impact strength. In another embodiment, a polymer composition is provided comprising at least one poly(arylene sulfide), at least one polysiloxane having molecular in the range of from about 100,000 to about 400,000, and optionally at least one trialkoxysilane.
Inventors
- 👤 Yeon F. Liang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:41
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/47; C; C08; C08L; C08L81/00; C08L81/02; C08L23/00; C08L83/00; C08L83/04
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
120 words
A composition comprising: (a) at least one poly(arylene sulfide), (b) at least one polysiloxane having the repeating unit ##STR3## (c) at least one trialkoxysilane having the formula X--Si(OR') 3 , and (d) at least one solid, resinous polyolefin; wherein each R is a monovalent hydrocarbyl radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, cycloalkyl, alkylcycloalkyl, aryl and alkaryl; each R' is a radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, alkoxyalkyl and alkylcarbonyl radicals; and X is a radical having from 1 to 8 carbon atoms selected from the group consisting of alkyl, alkenyl, epoxyalkyl, mercaptoalkyl, aminoalkyl, N-(aminoalkyl)aminoalkyl, ureidoalkyl, haloalkyl, alkenoyloxyalkyl, and epoxyalkoxyalkyl groups.
Claim 2
Dependent Claim
120 words
A composition comprising: (a) at least one poly(arylene sulfide), (b) at least one polysiloxane having the repeating unit ##STR3## (c) at least one trialkoxysilane having the formula X--Si(OR') 3 , and (d) at least one solid, resinous polyolefin; wherein each R is a monovalent hydrocarbyl radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, cycloalkyl, alkylcycloalkyl, aryl and alkaryl; each R' is a radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, alkoxyalkyl and alkylcarbonyl radicals; and X is a radical having from 1 to 8 carbon atoms selected from the group consisting of alkyl, alkenyl, epoxyalkyl, mercaptoalkyl, aminoalkyl, N-(aminoalkyl)aminoalkyl, ureidoalkyl, haloalkyl, alkenoyloxyalkyl, and epoxyalkoxyalkyl groups.
Claim 3
Dependent Claim
25 words
A composition in accordance with claim 1, wherein the amounts of components (b), (c) and (d) are effective to increase the impact strength of (a).
Claim 4
Dependent Claim
52 words
A composition in accordance with claim 1 comprising 100 parts by weight of said poly(arylene sulfide), about 0.1 to about 25 parts by weight of said polysiloxane, about 0.01 to about 5 parts by weight of said trialkoxysilane, and about 0.05 to about 20 parts by weight of said solid, resinous polyolefin.
Claim 5
Dependent Claim
34 words
A composition in accordance with claim 1, wherein said solid, resinous polyolefin is selected from the group consisting of homopolymers and copolymers of mono-1-olefin having from 2 to 6 carbon atoms per monomer molecule.
Claim 6
Dependent Claim
22 words
A composition in accordance with claim 4, wherein said solid, resinous polyolefin is selected from the group consisting of polyethylene and polypropylene.
Claim 7
Dependent Claim
14 words
A composition in accordance with claim 1, wherein said poly(arylene sulfide) is poly(phenylene sulfide).
Claim 8
Dependent Claim
25 words
A composition in accordance with claim 1, wherein the molecular weight of said polysiloxane is in the range of from about 100,000 to about 400,000.
Claim 9
Dependent Claim
14 words
A composition in accordance with claim 7, wherein said polysiloxane is a silanol-terminated polysiloxane.
Claim 10
Dependent Claim
28 words
A composition in accordance with claim 1, wherein said polysiloxane is a silanol-terminated polydimethylsiloxane having a molecular weight in the range of from about 250,000 to about 400,000.
Claim 11
Dependent Claim
20 words
A composition in accordance with claim 1, wherein said trialkoxysilane is selected from the group consisting of 3-mercaptopropyltrimethoxysilane and 3-aminopropyltriethoxysilane.
Claim 12
Dependent Claim
58 words
A composition in accordance with claim 1, wherein said poly(arylene sulfide) is poly(phenylene sulfide), the molecular weight of said polysiloxane is in the range of from about 100,000 to about 400,000, said trialkoxysilane is selected from the group consisting of 3-mercaptopropyltrimethoxysilane and 3-aminopropyltriethoxysilane, and said solid, resinous polyolefin is selected from the group consisting of polyethylene and polypropylene.
Claim 13
Dependent Claim
28 words
A composition in accordance with claim 11, wherein said polysiloxane is a silanol-terminated polydimethylsiloxane having a molecular weight in the range of from about 250,000 to about 400,000.
Claim 14
Dependent Claim
54 words
A composition in accordance with claim 11 comprising 100 parts by weight of poly(phenylene sulfide), from about 0.5 to about 15 parts by weight of said polysiloxane, from about 0.05 to about 1 part by weight of said trialkoxysilane and from about 0.1 to about 10 parts by weight of said solid, resinous polyolefin.
Claim 15
Dependent Claim
28 words
A composition in accordance with claim 13, wherein said polysiloxane is a silanol-terminated polydimethylsiloxane having a molecular weight in the range of from about 250,000 to about 400,000.
Claim 16
Dependent Claim
51 words
A composition in accordance with claim 11 comprising 100 parts by weight of poly(phenylene sulfide), about 0.7 to about 10 parts by weight of said polysiloxane, about 0.07 to about 0.5 parts by weight of said trialkoxysilane, and about 0.5 to about 6 parts by weight of said solid, resinous polyolefin.
Claim 17
Dependent Claim
28 words
A composition in accordance with claim 15, wherein said polysiloxane is a silanol-terminated polydimethylsiloxane having a molecular weight in the range of from about 250,000 to about 400,000.
Claim 18
Dependent Claim
54 words
A composition in accordance with claim 1 comprising about 1 to about 20 parts by weight of said poly(arylene sulfide), about 0.1 to about 25 parts by weight of said polysiloxane, about 0.01 to about 5 parts of said trialkoxysilane and about 0.05 to about 20 parts by weight of said solid, resinous polyolefin.
Claim 19
Dependent Claim
29 words
A composition in accordance with claim 17, wherein said poly(arylene sulfide) is poly(phenylene sulfide) and said solid, resinous polyolefin is selected from the group consisting of polyethylene and polypropylene.
Claim 20
Dependent Claim
31 words
A composition in accordance with claim 17, wherein said poly(arylene) sulfide is poly(phenylene sulfide) and said polysiloxane has a molecular weight in the range of from about 100,000 to about 400,000.
Claim 21
Dependent Claim
28 words
A composition in accordance with claim 19, wherein said polysiloxane is a silanol-terminated polydimethylsiloxane having a molecular weight in the range of from about 250,000 to about 400,000.
Claim 22
Dependent Claim
122 words
A process which comprises blending (a) at least one poly(arylene sulfide). (b) at least one polysiloxane having the repeating unit ##STR4## (c) at least one trialkoxysilane having the formula X--Si(OR') 3 , and (d) at least one solid, resinous polyolefin; wherein each R is a monovalent hydrocarbyl radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, cycloalkyl, alkylcycloalkyl, aryl and alkaryl; each R', is a radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, alkoxyalkyl and alkylcarbonyl radicals; and X is a radical having from 1 to 8 carbon atoms selected from the group consisting of alkyl, alkenyl, epoxyalkyl, mercaptoalkyl, aminoalkyl, N-(aminoalkyl)aminoalkyl, ureidoalkyl, haloalkyl, alkenoyloxyalkyl, and epoxyalkoxyalkyl groups.
Claim 23
Dependent Claim
122 words
A process which comprises blending (a) at least one poly(arylene sulfide). (b) at least one polysiloxane having the repeating unit ##STR4## (c) at least one trialkoxysilane having the formula X--Si(OR') 3 , and (d) at least one solid, resinous polyolefin; wherein each R is a monovalent hydrocarbyl radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, cycloalkyl, alkylcycloalkyl, aryl and alkaryl; each R', is a radical having from 1 to 8 carbon atoms, individually selected from the group consisting of alkyl, alkoxyalkyl and alkylcarbonyl radicals; and X is a radical having from 1 to 8 carbon atoms selected from the group consisting of alkyl, alkenyl, epoxyalkyl, mercaptoalkyl, aminoalkyl, N-(aminoalkyl)aminoalkyl, ureidoalkyl, haloalkyl, alkenoyloxyalkyl, and epoxyalkoxyalkyl groups.
Claim 24
Dependent Claim
25 words
A process in accordance with claim 21, wherein the amounts of components (b), (c) and (d) are effective to increase the impact strength of (a).
Claim 25
Dependent Claim
54 words
A process in accordance with claim 21, wherein 100 parts by weight of said poly(arylene sulfide), about 0.1 to about 25 parts by weight of said polysiloxane, about 0.01 to about 5 parts by weight of said trialkoxysilane, and about 0.05 to about 20 parts by weight of said solid, resinous polyolefin are blended.
Claim 26
Dependent Claim
34 words
A process in accordance with claim 21, wherein said solid, resinous polyolefin is selected from the group consisting of homopolymers and copolymers of mono-l-olefin having from 2 to 6 carbon atoms per monomer molecule.
Claim 27
Dependent Claim
22 words
A process in accordance with claim 24, wherein said solid, resinous polyolefin is selected from the group consisting of polyethylene and polypropylene.
Claim 28
Dependent Claim
14 words
A process in accordance with claim 21, wherein said poly(arylene sulfide) is poly(phenylene sulfide).
Claim 29
Dependent Claim
25 words
A process in accordance with claim 21, wherein the molecular weight of said polysiloxane is in the range of from about 100,000 to about 400,000.
Claim 30
Dependent Claim
14 words
A process in accordance with claim 27, wherein said polysiloxane is a silanol-terminated polysiloxane.
Claim 31
Dependent Claim
28 words
A process in accordance with claim 21, wherein said polysiloxane is a silanol-terminated polydimethylsiloxane having a molecular weight in the range of from about 250,000 to about 400,000.
Claim 32
Dependent Claim
20 words
A process in accordance with claim 21, wherein said trialkoxysilane is selected from the group consisting of 3-mercaptopropyltrimethoxysilane and 3-aminopropyltriethoxysilane.
Claim 33
Dependent Claim
58 words
A process in accordance with claim 21, wherein said poly(arylene sulfide) is poly(phenylene sulfide), the molecular weight of said polysiloxane is in the range of from about 100,000 to about 400,000, said trialkoxysilane is selected from the group consisting of 3-mercaptopropyltrimethoxysilane and 3-aminopropyltrichoxysilane, and said solid, resinous polyolefin is selected from the group consisting of polyethylene and polypropylene.
Claim 34
Dependent Claim
28 words
A process in accordance with claim 31, wherein said polysiloxane is a silanol-terminated polydimethylsiloxane having a molecular weight in the range of from about 250,000 to about 400,000.
Claim 35
Dependent Claim
51 words
A process in accordance with claim 31, wherein 100 parts by weight of poly(phenylene sulfide), about 0.5 to about 15 parts by weight of said polysiloxane, about 0.05 to about 1 part by weight of said trialkoxysilane, and about 0.1 to about 10 parts by weight of said polyolefin are blended.
Claim 36
Dependent Claim
39 words
A process in accordance with claim 21 comprising the steps of dry-blending components (a), (b), (c) and (d), melting the dry-blended mixture of (a), (b), (c) and (d), and extruding the melted mixture of (a), (b), (c) and (d).
Claim 37
Dependent Claim
29 words
A process in accordance with claim 34 comprising the additional step of molding the extruded mixture of (a), (b), (c) and (d) obtained in the process of claim 34.
Claim 38
Dependent Claim
30 words
A process in accordance with claim 21 comprising the steps of (i) blending components (b), (c) and (d), and (ii) blending the mixture obtained in step (i) with component (a).
Claim 39
Dependent Claim
45 words
A process in accordance with claim 36, wherein said blending step (i) comprises the step of dry-blending components (b), (c) and (d), melting the dry-blending mixture of (b), (c) and (d), extruding the melted blend of (b), (c) and (d) so as to make pellets.
Claim 40
Dependent Claim
31 words
A process in accordance with claim 37, wherein said step (ii) comprises the step of melt-blending the mixture of components (b), (c) and (d) obtained in step (i) with component (a).
Claim 41
Dependent Claim
49 words
A process in accordance with claim 36, wherein said blend obtained in step (i) comprises about 0.1 to about 25 parts by weight of component (b), about 0.01 to about 5 parts by weight of component (c), and about 0.05 to about 20 parts by weight of component (d).
Claim 42
Dependent Claim
42 words
A process in accordance with claim 36, wherein component (a) is poly(phenylene sulfide), component (b) has a molecular weight in the range of from about 100,000 to about 400,000, and component (d) is selected from the group consisting of polyethylene and polypropylene.
Claim 43
Dependent Claim
27 words
A process in accordance with claim 39, wherein said blend obtained in step (i) is blended with 100 parts by weight of poly(phenylene sulfide) in step (ii).
References Cited (Backward Citations)
US3354129A
Cited
US3399156A
Cited
US3536657A
Cited
US3933712A
Cited
JPS5112861A
Cited
US3929708A
Cited
US4011121A
Cited
JPS5252958A
Cited
US4141851A
Cited
US4176098A
Cited
US4151154A
Cited
US4134874A
Cited
US4144202A
Cited
US4151344A
Cited
US4287108A
Cited
US4247598A
Cited
US4273691A
Cited
US4269756A
Cited
US4390656A
Cited
EP0044136A1
Cited
US4337182A
Cited
US4419411A
Cited
US4487858A
Cited
US4492647A
Cited
US4544700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-23 | 1991-05-25 | 1991-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-23 | 1995-05-25 | 1995-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-23 | 1999-05-25 | 1999-11-24 | $7700.00 | Window Closed / Lapsed |