Patent US1086067A successfully refreshed from Google Patents.
Patent US4975479A successfully refreshed from Google Patents.
US4975479A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-resistant thermoplastic resin composition
Assignee: Kureha Corp
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Filing: 1989-10-20
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Granted: 1990-12-04
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Expires: 2009-10-20
Abstract
Abstract Disclosed herein are melt-stable thermoplastic resin compositions comprising (A) 100 parts by weight of a particular poly(arylene thioether) block copolymer, (B) --400 parts by weight of at least one of thermoplastic resins, and (C) 0-400 parts by weight of at least one filler per 100 parts by weight of the resin components. At least either one of Component (B) and Component (C) is contained in a proportion of at least 0.1 part by weight per 100 parts by weight of Component (A). The poly(arylene thioether) block copolymer alternately comprise at least one poly(arylene thioether-ketone) block having predominant recurring units of the formula ##STR1## wherein the --CO-- and --S-- are in the para position to each other and at least one poly(arylene thioether) block having predominant recurring units of the formula ##STR2## Also disclosed are compositions obtained by stabilizing by the melt-stable thermoplastic resin compositions with a basic compound and products molded or formed product from these compositions.
Inventors
- 👤 Yoshikatsu Satake
- 👤 Shinji Yamamoto
- 👤 Takashi Kaneko
- 👤 Masahito Tada
- 👤 Ken Kashiwadate
- 👤 Toshiya Mizuno
- 👤 Hiroyuki Endo
- 👤 Takayuki Katto
- 👤 Zenya Shiiki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:08
CPC Classifications
C; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/14; C08G; C08G75/00; C08G75/02; C08G75/0204; C08G75/0236; C08G75/024; C08G75/0245; C08K3/00; C08K3/18; C08K3/24; C08K3/26; C08L; C08L81/00; C08L81/02; C08L101/00; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L65/00; C08L71/00; C08L79/00; C08L79/04; C08L79/08; C08L81/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
206 words
A melt-stable thermoplastic resin composition comprising: (A) 100 parts by weight of a poly(arylene thioether) block copolymer (Component A) alternately comprising (X) at least one poly(arylene thioether-ketone) block having predominant recurring units of the formula ##STR20## wherein the --CO-- and --S-- are in the para position to each other and (Y) at least one poly(arylene thioether) block having predominant recurring units of the formula ##STR21## (a) the ratio of the total amount of the poly(arylene thioether) block (Y) to the total amount of the poly(arylene thioether-ketone) block (X) ranging from 0.05 to 5 by weight, (b) the average polymerization degree of the poly(arylene thioether) block (Y) being at least 10, and (c) said block copolymer having a melt viscosity of 2-100,000 poises as measured at 350° C. and a shear rate of 1,200/sec; (B) 0-400 parts by weight of at least one of thermoplastic resins (Component B); and (C) 0-400 parts by weight of at least one filler (Component C) selected from fibrous fillers and inorganic fillers, per 100 parts by weight of the resin components, at least either one of Component B and Component C being contained in a proportion of at least 0.1 part by weight per 100 parts by weight of Component A.
Claim 2
Dependent Claim
206 words
A melt-stable thermoplastic resin composition comprising: (A) 100 parts by weight of a poly(arylene thioether) block copolymer (Component A) alternately comprising (X) at least one poly(arylene thioether-ketone) block having predominant recurring units of the formula ##STR20## wherein the --CO-- and --S-- are in the para position to each other and (Y) at least one poly(arylene thioether) block having predominant recurring units of the formula ##STR21## (a) the ratio of the total amount of the poly(arylene thioether) block (Y) to the total amount of the poly(arylene thioether-ketone) block (X) ranging from 0.05 to 5 by weight, (b) the average polymerization degree of the poly(arylene thioether) block (Y) being at least 10, and (c) said block copolymer having a melt viscosity of 2-100,000 poises as measured at 350° C. and a shear rate of 1,200/sec; (B) 0-400 parts by weight of at least one of thermoplastic resins (Component B); and (C) 0-400 parts by weight of at least one filler (Component C) selected from fibrous fillers and inorganic fillers, per 100 parts by weight of the resin components, at least either one of Component B and Component C being contained in a proportion of at least 0.1 part by weight per 100 parts by weight of Component A.
Claim 3
Dependent Claim
107 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the poly(arylene thioether) block copolymer (Component A) has a melt crystallization temperature, Tmc (400° C./10 min) of at least 170° C. and a residual melt crystallization enthalpy, ΔHmc (400° C./10 min) of at least 10 J/g, wherein Tmc (400° C./10 min) and ΔHmc (400° C./10 min) are determined by a differential scanning calorimeter at a cooling rate of 10° C./min after the block copolymer is held at 50° C. for 5 minutes in an inert gas atmosphere, heated to 400° C. at a rate of 75° C./min and then held for 10 minutes at 400° C.
Claim 4
Dependent Claim
32 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the poly(arylene thioether) block (Y) in the poly(arylene thioether) block copolymer (Component A) has predominant recurring units of the formula ##STR22##
Claim 5
Dependent Claim
108 words
The melt-stable thermoplastic resin composition as claimed in claim 1, further comprising, per 100 parts by weight of the poly(arylene thioether) block copolymer (Component A), 0.1-30 parts by weight of at least one basic compound (Component D) selected from the group consisting of hydroxides, oxides and aromatic carboxylates of group IIA metals of the periodic table other than magnesium, and aromatic carboxylates, carbonates, hydroxides, phosphates, including condensation products, and borates, including condensation products, of group IA metals of the periodic table and 0-10 parts by weight of at least one anti-oxidant (Component E) selected from the group consisting of hindered phenolic compounds, phosphorus compounds and hindered amine compounds.
Claim 6
Dependent Claim
57 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the thermoplastic resin (Component B) is at least one polymer selected from poly(arylene thioether) having predominant recurring units of the formula ##STR23## and poly(arylene thioether-ketone) having predominant recurring units of the formula ##STR24## wherein the --CO-- and --S-- are in the para position to each other.
Claim 7
Dependent Claim
21 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the thermoplastic resin (Component B) is a liquid crystalline polyester.
Claim 8
Dependent Claim
20 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the thermoplastic resin (Component B) is a polYether imide.
Claim 9
Dependent Claim
18 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the thermoplastic resin (Component B) is polytetrafluoroethylene.
Claim 10
Dependent Claim
20 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the thermoplastic resin (Component B) is an aromatic polyetherketone.
Claim 11
Dependent Claim
20 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the thermoplastic resin (Component B) is an aromatic polysulfone.
Claim 12
Dependent Claim
34 words
The melt-stable thermoplastic resin composition as claimed in claim 1, wherein the fibrous filler (Component C) is at least one filler selected from the group consisting of glass fibers, carbon fibers and Aramid fibers.
Claim 13
Dependent Claim
17 words
A formed or molded product made of the melt-stable thermoplastic resin composition as claimed in claim 1.
Claim 14
Dependent Claim
28 words
The formed or molded product made of the melt-stable thermoplastic resin composition as claimed in claim 12, which is an extruded product, injection-molded product or an unstretched film.
Claim 15
Dependent Claim
17 words
The formed or molded product made of the melt-stable thermoplastic resin composition as claimed in claim 4.
Claim 16
Dependent Claim
28 words
The formed or molded product made of the melt-stable thermoplastic resin composition as claimed in claim 14, which is an extruded product, injection-molded product or an unstretched film.
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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) | 1993-12-03 | 1994-06-04 | 1994-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-03 | 1998-06-04 | 1998-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-03 | 2002-06-04 | 2002-12-04 | $7700.00 | Window Closed / Lapsed |