Patent US5310776A successfully refreshed from Google Patents.
US5310776A
Expired / Lapsed
US
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Process for preparing thermoplastic resin composition
Assignee: Mitsubishi Chemical Corp
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Filing: 1993-04-30
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Granted: 1994-05-10
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Expires: 2013-04-30
Abstract
Abstract There is disclosed a process for preparing a thermoplastic resin composition which comprises melting and kneading (A) 100 parts by weight of a resin comprising 100% by weight in total of: (a) 5 to 95% by weight of a non-crystalline thermoplastic resin, (b) 95 to 5% by weight of a crystalline thermoplastic resin, (c) 0 to 50% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier and (B) 1.0 part by weight or more of an organic solvent in a kneader equipped with vent ports each having a vacuum device while maintaining each vent port at reduced pressure to make an organic solvent content in a final composition less than 1.0% by weight.
Inventors
- 👤 Kiyoji Takagi
- 👤 Yoshihiro Kurasawa
- 👤 Koji Nishida
- 👤 Shigekazu Ohi
- 👤 Kenji Mori
- 👤 Tsukasa Sato
- 👤 Tosio Itou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:51
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/04; C08J; C08J3/00; C08J3/005; C08L101/00; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0815; C08L23/10; C08L67/02; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L2205/00; C08L2205/08; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/10
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
117 words
A process for preparing a thermoplastic resin composition which comprises melting and kneading (A) 100 parts by weight of a resin comprising 100% by weight in total of: (a) 5 to 95% by weight of a non-crystalline thermoplastic resin, (b) 95 to 5% by weight of a crystalline thermoplastic resin, (c) 0 to 50% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier and (B) 1.0 part by weight or more of an organic solvent in a kneader equipped with vent ports each having a vacuum device while maintaining each vent port at reduced pressure to make an organic solvent content in a final composition less than 1.0% by weight.
Claim 2
Dependent Claim
117 words
A process for preparing a thermoplastic resin composition which comprises melting and kneading (A) 100 parts by weight of a resin comprising 100% by weight in total of: (a) 5 to 95% by weight of a non-crystalline thermoplastic resin, (b) 95 to 5% by weight of a crystalline thermoplastic resin, (c) 0 to 50% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier and (B) 1.0 part by weight or more of an organic solvent in a kneader equipped with vent ports each having a vacuum device while maintaining each vent port at reduced pressure to make an organic solvent content in a final composition less than 1.0% by weight.
Claim 3
Dependent Claim
52 words
The process according to claim 1, wherein the resin comprises (a) 5 to 70% by weight of a non-crystalline thermoplastic resin, (b) 95 to 30% by weight of a crystalline thermoplastic resin, (c) 0 to 50% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier.
Claim 4
Dependent Claim
52 words
The process according to claim 1, wherein the resin comprises (a) 10 to 55% by weight of a non-crystalline thermoplastic resin, (b) 90 to 45% by weight of a crystalline thermoplastic resin, (c) 0 to 50% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier.
Claim 5
Dependent Claim
25 words
The process according to claim 1, wherein said (a) non-crystalline thermoplastic resin is a polyphenylene ether and said (b) crystalline thermoplastic resin is a polyolefin.
Claim 6
Dependent Claim
49 words
The process according to claim 1, wherein the resin comprises (a) 9 to 90% by weight of a polyphenylene ether, (b) 9 to 90% by weight of a polyolefin, (c) 0.1 to 50% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier.
Claim 7
Dependent Claim
49 words
The process according to claim 1, wherein the resin comprises (a) 20 to 85% by weight of a polyphenylene ether, (b) 12 to 80% by weight of a polyolefin, (c) 0.5 to 40% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier.
Claim 8
Dependent Claim
49 words
The process according to claim 1, wherein the resin comprises (a) 30 to 80% by weight of a polyphenylene ether, (b) 15 to 70% by weight of a polyolefin, (c) 1 to 30% by weight of a compatibilizer and (d) 0 to 40% by weight of an impact modifier.
Claim 9
Dependent Claim
26 words
The process according to claim 1, wherein said (a) non-crystalline thermoplastic resin is a polyphenylene ether and said (b) crystalline thermoplastic resin is a saturated polyester.
Claim 10
Dependent Claim
50 words
The process according to claim 1, wherein the resin comprises (a) 4 to 95% by weight of a polyphenylene ether, (b) 4 to 95% by weight of a saturated polyester, (c) 0.01 to 50% by weight of a compatibilizer and (d) 0.5 to 40% by weight of an impact modifier.
Claim 11
Dependent Claim
50 words
The process according to claim 1, wherein the resin comprises (a) 5 to 70% by weight of a polyphenylene ether, (b) 30 to 95% by weight of a saturated polyester, (c) 0.5 to 40% by weight of a compatibilizer and (d) 3 to 30% by weight of an impact modifier.
Claim 12
Dependent Claim
50 words
The process according to claim 1, wherein the resin comprises (a) 10 to 55% by weight of a polyphenylene ether, (b) 45 to 90% by weight of a saturated polyester, (c) 1 to 35% by weight of a compatibilizer and (d) 7 to 20% by weight of an impact modifier.
Claim 13
Dependent Claim
25 words
The process according to claim 1, wherein said (a) non-crystalline thermoplastic resin is a polyphenylene ether and said (b) crystalline thermoplastic resin is a polyamide.
Claim 14
Dependent Claim
20 words
The process according to claim 1, wherein an amount of the organic solvent is 1.0 to 50 parts by weight.
Claim 15
Dependent Claim
20 words
The process according to claim 1, wherein an amount of the organic solvent is 2 to 30 parts by weight.
Claim 16
Dependent Claim
20 words
The process according to claim 1, wherein the pressure of each vent port is maintained at 200 Torr or less.
Claim 17
Dependent Claim
20 words
The process according to claim 1, wherein the pressure of each vent port is maintained at 100 Torr or less.
Claim 18
Dependent Claim
20 words
The process according to claim 1, wherein the pressure of each vent port is maintained at 50 Torr or less.
Claim 19
Dependent Claim
22 words
The process according to claim 1, wherein the organic solvent content in a final composition is made less than 0.8% by weight.
Claim 20
Dependent Claim
22 words
The process according to claim 1, wherein the organic solvent content in a final composition is made less than 0.5% by weight.
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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) | 1997-05-09 | 1997-11-08 | 1998-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-09 | 2001-11-08 | 2002-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-09 | 2005-11-08 | 2006-05-10 | $7700.00 | Window Closed / Lapsed |