Patent US2750339A successfully refreshed from Google Patents.
US4645802A
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Blends of bisphenol A polycarbonate with poly(ester-imides) and poly(ester-imide-amides)
Assignee: Eastman Chemical Co
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Filing: 1986-01-13
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Granted: 1987-02-24
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Expires: 2006-01-13
Abstract
Abstract Blends of bisphenol A polycarbonate with poly(ester-imides) and poly(ester-imide-amides). The poly(ester-imides) and poly(ester-imide-amides) contain repeating units from 0 to 95 mol percent of aromatic dicarboxylic acids containing 8 to 16 carbon atoms and having at least three carbon atoms between carboxyl groups or esters thereof, repeating units from 0 to 95 mol % 1,4-cyclohexanedimethanol, repeating units from 5 to 100 mol % trimellitic acid or anhydride, and repeating units from 5 to 100 mol % 4-(aminomethyl)cyclohexanemethanol, and wherein the mol % of the repeating units from the trimellitic acid or anhydride does not exceed the mol % of repeating units from the 4-(aminomethyl)cyclohexanemethanol.
Inventors
- 👤 Winston J. Jackson, Jr.
- 👤 John C. Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:37
CPC Classifications
C; C08; C08L; C08L69/00; C08L79/00; C08L79/04; C08L79/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
63 words
Composition comprising a blend of about 5-95% by weight of a polycarbonate of 4,4'-isopropylidenediphenol having an inherent viscosity of at least 0.3 and about 95-5% by weight of a polymer comprising repeating units from about 5-98 mol % trimellitic acid or anhydride and repeating units from 4-(aminomethyl)cyclohexanemethanol, the mol % of trimellitic acid or anhydride being no greater than the mol % 4-(aminomethyl)cyclohexanemethanol.
Claim 2
Dependent Claim
63 words
Composition comprising a blend of about 5-95% by weight of a polycarbonate of 4,4'-isopropylidenediphenol having an inherent viscosity of at least 0.3 and about 95-5% by weight of a polymer comprising repeating units from about 5-98 mol % trimellitic acid or anhydride and repeating units from 4-(aminomethyl)cyclohexanemethanol, the mol % of trimellitic acid or anhydride being no greater than the mol % 4-(aminomethyl)cyclohexanemethanol.
Claim 3
Dependent Claim
47 words
Composition of claim 1 wherein 2 to 95 mol % of the repeating units from trimellitic acid or anhydride are replaced with repeating units from aromatic dicarboxylic acids or esters thereof containing 8 to 16 carbon atoms and having at least three carbon atoms between carboxyl groups.
Claim 4
Dependent Claim
49 words
Composition of claim 2 wherein 2 to 95 mol % of the repeating units from 4-(aminomethyl)cyclohexanemethanol are replaced with repeating units from 1,4-cyclohexanedimethanol, and wherein the mol % of the repeating units from trimellitic acid or anhydride does not exceced the mol % of repeating units from the 4-(aminomethyl)cyclohexanemethanol.
Claim 5
Dependent Claim
36 words
Composition of claim 2 wherein the repeating units from said aromatic dicarboxylic acids or esters thereof are selected from terephthalic acid, 2-methylterephthalic acid, 2-chloroterephthatlic acid, 2,5-dimethylterephthalic acid, 2,5-dichloroterephthalic acid, 2,6-napthalenedicarboxylic acid, 4,4'-biphenyl-dicarboxylic acid or esters thereof.
Claim 6
Dependent Claim
34 words
Composition of claim 3 wherein the mol % of repeating units from the 4-(aminomethyl)cyclohexanemethanol is equal to or exceeds by up to 95 mol % the repeating units from the trimellitic acid or anhydride.
Claim 7
Dependent Claim
64 words
Composition of claim 4 wherein up to 20 mol % of the repeating units from the terephthalic acids or esters thereof are replaced with repeating units from other aromatic dicarboxylic acids thereof and having at least 3 carbon atoms between carboxyl groups containing 8 to 16 carbon atoms or esters thereof or aliphatic dicarboxylic acids or esters thereof containing 3 to 20 carbon atoms.
Claim 8
Dependent Claim
32 words
Compositions of claim 3 wherein up to 30 mol % of the repeating units from the 1,4-cyclohexanedimethanol are replaced with repeating units from other aliphatic glycols containing 2 to 10 carbon atoms.
Claim 9
Dependent Claim
30 words
Composition of claim 2 wherein up to 20 mol % of the repeating units from 4-(aminomethyl)cyclohexanemethanol are replaced with repeating units from other aminoalcohols containing 2 to 12 carbon atoms.
Claim 10
Dependent Claim
20 words
Composition of claim 3 wherein at least 70 mol % of the repeating units from the 4-(aminomethyl)cyclohexanemethanol are from trans-4-(aminomethyl)cyclohexanemethanol.
Claim 11
Dependent Claim
21 words
Composition of claim 2 wherein the repeating units from the aromatic dicarboxylic acid portion of the composition are from terephthalic acid.
References Cited (Backward Citations)
GB973377A
Cited
US3733302A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-23 | 1990-08-25 | 1991-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-23 | 1994-08-25 | 1995-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-23 | 1998-08-25 | 1999-02-24 | $7700.00 | Window Closed / Lapsed |