US4659789A
Expired / Lapsed
US
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Phenylene sulfide resin compositions
Assignee: Phillips Petroleum Co
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Filing: 1986-01-23
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Granted: 1987-04-21
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Expires: 2006-01-23
Abstract
Abstract A novel phenylenesulfide resin composition comprises (I) a poly-p-phenylenesulfide, (II) a poly-m-phenylenesulfide, and (III) a phenylenesulfide block copolymer consisting essentially of a repeating unit ##STR1## (A) and a repeating unit ##STR2## (B), wherein from 20 to 5,000 units on the average of the repeating units (A) linked together exist in the molecular chain in the form of the block component, and wherein the molar faction (X) of the repeating unit (A) is in the range of 0.10 to 0.95, the mixing ratio of the three components (I), (II) and (III) being in a specified range. The composition is characterized by compatibility between the components (I) and (II), whereby transparency, physical properties and other characteristics thereof are markedly enhanced.
Inventors
- 👤 Takayuki Katto
- 👤 Masahito Tada
- 👤 Toshitaka Kouyama
- 👤 Yo Iizuka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:28
CPC Classifications
C; C08; C08L; C08L81/00; C08L81/02; C08G; C08G75/00; C08G75/02; C08G75/0204; C08G75/0209; C08G75/0213; C08G75/0245; C08G75/025; C08G75/0254; C08G75/0277; C08G75/14; D; D01; D01F; D01F6/00; D01F6/58; D01F6/76; D01F6/765; D01F6/88; D01F6/94
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
93 words
A phenylenesulfide resin composition which comprises: (I) a poly-p-phenylenesulfide, (II) a poly-m-phenylenesulfide, and (III) a phenylenesulfide block copolymer consisting essentially of a repeating unit ##STR19## (A) and a repeating unit ##STR20## (B), wherein from 20 to 5,000 units on the average of the repeating units (A) linked together exist in the molecular chain in the form of the block component and wherein the molar fraction (X) of the repeating unit (A) is in the range of 0.10 to 0.95; the mixing ratio of the components (I), (II) and (III) satisfying the equations: ##EQU2##
Claim 2
Dependent Claim
93 words
A phenylenesulfide resin composition which comprises: (I) a poly-p-phenylenesulfide, (II) a poly-m-phenylenesulfide, and (III) a phenylenesulfide block copolymer consisting essentially of a repeating unit ##STR19## (A) and a repeating unit ##STR20## (B), wherein from 20 to 5,000 units on the average of the repeating units (A) linked together exist in the molecular chain in the form of the block component and wherein the molar fraction (X) of the repeating unit (A) is in the range of 0.10 to 0.95; the mixing ratio of the components (I), (II) and (III) satisfying the equations: ##EQU2##
Claim 3
Dependent Claim
31 words
The phenylenesulfide resin composition as claimed in claim 1 in which the poly-p-phenylenesulfide (I) comprises a unit of p-phenylenesulfide in a quantity of at least 80 mole percent of the poly-p-phenylenesulfide.
Claim 4
Dependent Claim
27 words
The phenylenesulfide resin composition as claimed in claim 2 in which the quantity of a unit of p-phenylenesulfide is at least 90 mole percent of the poly-p-phenylenesulfide.
Claim 5
Dependent Claim
31 words
The phenylenesulfide resin composition as claimed in claim 1 in which the poly-m-phenylenesulfide (II) comprises a unit of m-phenylenesulfide in a quantity of at least 80 mole percent of the poly-m-phenylenesulfide.
Claim 6
Dependent Claim
27 words
The phenylenesulfide resin composition as claimed in claim 4 in which the quantity of a unit of m-phenylenesulfide is at least 90 mole percent of the poly-m-phenylenesulfide.
Claim 7
Dependent Claim
27 words
The phenylenesulfide resin composition as claimed in claim 1 in which each of the phenylenesulfide polymers (I), (II) and (III) are substantially free of a crosslinked structure.
Claim 8
Dependent Claim
42 words
The phenylenesulfide resin composition as claimed in claim 1 in which the poly-p-phenylenesulfide (I) has a melt viscosity of 10 to 200,000 poises measured under the condition of a temperature of 310° C. and a shear velocity of 200 sec -1 .
Claim 9
Dependent Claim
42 words
The phenylenesulfide resin composition as claimed in claim 1 in which the poly-m-phenylenesulfide (II) has a melt viscosity of 1 to 100,000 poises measured under the conditions of a temperature of 135° C. and a shear velocity of 200 sec -1 .
Claim 10
Dependent Claim
44 words
The phenylenesulfide resin composition as claimed in claim 1 in which the block copolymer (III) has a melt viscosity of 10 to 10 5 poises measured under the conditions of a temperature of 310° C. and a shear velocity of 200 sec -1 .
Claim 11
Dependent Claim
23 words
The phenylenesulfide resin composition as claimed in claim 1 in which the molar fraction X is in the range of 0.10 to 0.95.
Claim 12
Dependent Claim
23 words
The phenylenesulfide resin composition as claimed in claim 10 in which the molar fraction (X) is in the range of 0.40 to 0.90.
Claim 13
Dependent Claim
26 words
The phenylenesulfide resin composition as claimed in claim 1 in which the composition has a melt viscosity in the range of 10 to 10 5 poises.
Claim 14
Dependent Claim
24 words
The phenylenesulfide resin composition as claimed in claim 12 in which the melt viscosity is in the range of 50 to 10 5 poises.
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) | 1990-04-20 | 1990-10-20 | 1991-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-20 | 1994-10-20 | 1995-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-20 | 1998-10-20 | 1999-04-21 | $7700.00 | Window Closed / Lapsed |