US5814712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact-modified thermoplastics resin molding compositions and articles molded therefrom
Assignee: SABIC Global Technologies BV
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Filing: 1996-04-25
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Granted: 1998-09-29
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Expires: 2016-04-25
Abstract
Abstract A method for making an impact modified thermoplastic resin composition includes combining an glycidyl ester impact modifier with a polycarbonate resin to form a glycidyl ester impact modifier-polycarbonate resin blend and then combining the glycidyl ester impact modifier-polycarbonate resin blend with a polyester resin to provide the impact modified thermoplastic resin composition. Articles molded from the impact modified thermoplastic resin composition made according to the method exhibit high impact resistance and improved surface appearance.
Inventors
- 👤 Robert Russell Gallucci
- 👤 Paul Joseph Hans
- 👤 Joseph Maria Henri Janssen
- 👤 Woodie Daniel Mordecai
- 👤 Matthew Robert Pixton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:14
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; C08L69/00; C08L23/00; C08L23/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
84 words
A method for making an impact modified thermoplastic resin composition, comprising: combining a glycidyl ester impact modifier with a polycarbonate resin to form a glycidyl ester impact modifier/polycarbonate resin blend; said glycidyl ester impact modifier/polycarbonate resin blend consisting essentially of from 50 to 95 parts by weight polycarbonate resin and from 5 to 50 parts by weight of said glycidyl ester impact modifier; and combining the glycidyl ester impact modifier/polycarbonate resin blend with a polyester resin to provide the impact modified thermoplastic resin composition.
Claim 2
Independent Claim
84 words
A method for making an impact modified thermoplastic resin composition, comprising: combining a glycidyl ester impact modifier with a polycarbonate resin to form a glycidyl ester impact modifier/polycarbonate resin blend; said glycidyl ester impact modifier/polycarbonate resin blend consisting essentially of from 50 to 95 parts by weight polycarbonate resin and from 5 to 50 parts by weight of said glycidyl ester impact modifier; and combining the glycidyl ester impact modifier/polycarbonate resin blend with a polyester resin to provide the impact modified thermoplastic resin composition.
Claim 3
Dependent Claim
15 words
The method of claim 1, wherein the polycarbonate resin comprises a bisphenol A polycarbonate resin.
Claim 4
Dependent Claim
18 words
The method of claim 1, wherein the polycarbonate resin is a blend of two or more polycarbonate resins.
Claim 5
Dependent Claim
83 words
The method of claim 1, wherein the glycidyl ester impact modifier is a random copolymer having the structural formula: ##STR3## wherein: R 1 is H, alkyl or aryl; R 2 , R 3 and R 5 are each independently H or (C 1 -C 6 )alkyl; R 4 and R 6 are each independently alkyl or aryl; a+b+c+d=100; a is from 50 to 99.5; b is from 0.5 to 25; c is from 0 to 50; and d is from 0 to 50.
Claim 6
Dependent Claim
52 words
The method of claim 4, wherein R 1 is H,, R 2 and R 3 are each independently H or methyl, each R 4 is independently (C 1 -C 4 )alkyl, a is from 45 to75, b is from 5 to 15, c is from 20 to 40 and d is 0.
Claim 7
Dependent Claim
23 words
The method of claim 1, wherein the polyester resin comprises one or more resins selected from poly(ethylene terephthalate) resins and poly(butylene terephthalate) resins.
Claim 8
Dependent Claim
18 words
The method of claim 1, wherein the polyester resin is a blend of two or more polyester resins.
Claim 9
Dependent Claim
60 words
The method of claim 1, wherein the glycidyl ester impact modifier is combined with a first portion of the polycarbonate resin to form the glycidyl ester impact modifier/polycarbonate resin blend and the glycidyl ester impact modifier/polycarbonate resin blend is combined with a polyester resin and a second portion of the polycarbonate resin to provide the impact modified thermoplastic resin composition.
Claim 10
Dependent Claim
23 words
The method of claim 8, wherein the first and second portions of the polycarbonate resin each independently comprise one or more polycarbonate resins.
Claim 11
Dependent Claim
54 words
The method of claim 1, wherein the glycidyl ester impact modifier/polycarbonate resin blend comprises from 50 to 95 parts by weight of the polycarbonate resin and from 5 to 50 parts by weight of the glycidyl ester impact modifier, each based on 100 parts by weight of the glycidyl ester impact modifier/polycarbonate resin blend.
Claim 12
Dependent Claim
61 words
The method of claim 1, wherein the impact modified thermoplastic resin composition comprises from 10 to 90 parts by weight of the thermoplastic polyester resin, from 10 to 90 parts by weight of the polycarbonate resin and from 0.5 to 20 parts by weight of the glycidyl ester impact modifier, each based on 100 parts by weight of the resin composition.
Claim 13
Dependent Claim
20 words
The method of claim 1, wherein the glycidyl ester impact modifier is combined with the polycarbonate resin by melt blending.
Claim 14
Dependent Claim
22 words
The method of claim 1, wherein the glycidyl ester impact modifier/polycarbonate resin blend is combined with the polyester resin by melt blending.
Claim 15
Dependent Claim
13 words
An impact modified thermoplastic resin composition made by the method of claim 1.
Claim 16
Independent Claim
61 words
A method for making an impact resistant article, comprising: combining a glycidyl ester impact modifier with a polycarbonate resin to form a glycidyl ester impact modifier/polycarbonate resin blend; combining the glycidyl ester impact modifier/polycarbonate resin blend with a polyester resin to provide the impact modified thermoplastic resin composition, molding the impact modified thermoplastic resin composition to form the impact resistant article.
Claim 17
Independent Claim
61 words
A method for making an impact resistant article, comprising: combining a glycidyl ester impact modifier with a polycarbonate resin to form a glycidyl ester impact modifier/polycarbonate resin blend; combining the glycidyl ester impact modifier/polycarbonate resin blend with a polyester resin to provide the impact modified thermoplastic resin composition, molding the impact modified thermoplastic resin composition to form the impact resistant article.
Claim 18
Dependent Claim
11 words
An impact resistant article made by the method of claim 15.
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) | 2001-09-28 | 2002-03-30 | 2002-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-28 | 2006-03-30 | 2006-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-28 | 2010-03-30 | 2010-09-29 | $7700.00 | Window Closed / Lapsed |