US4309518A
Expired / Lapsed
US
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Molding compositions containing high-molecular weight linear polyester
Assignee: Huels AG
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Filing: 1980-07-25
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Granted: 1982-01-05
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Expires: 2000-07-25
Abstract
Abstract Molding compositions comprising A. 60-97% by weight, based on the weight of the total composition, of a poly(alkylene terephthalate) and B. 3-40% by weight, based on the weight of the total composition, of a polyether ester amide, component A being the condensation product of (1) 80-100 molar percent of terephthalic acid, and (2) 0-20 molar percent of another hydrocarbonaromatic-,cycloalkane- or alkane-dicarboxylic acid of 6-36 C atoms, with (3) 80-100 molar percent of a 1,n-alkanediol of 2-4 C atoms, wherein n is an integer of 2 to 4, and (4) 0-20 molar percent of another alkane- or cycloalkane-diol of 3-12 C atoms, component B being the condensation product of (1) at least one polaymide-forming omega -aminoalkanecarboxylic acid or alkanelactam, each of 10-17 carbon atoms, (2) a poly(alkylene glycol) having a molecular weight of 400 to 6000, (3) at least one other alkane-, cycloalkane- or hydrocarbon aromatic dicarboxylic acid of 4-11 carbon atoms, wherein the weight ratio of component B(1) to [B(2)+B(3)] is 20:80 to 98:2, and the hydroxy and carboxy groups in [B(2)+B(3)] are present in amounts approximately equivalent to each other, have unusually superior notch impact strengths.
Inventors
- 👤 Gernot Horlbeck
- 👤 Salih Mumcu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:37
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/02; Y; Y10; Y10S; Y10S525/00; Y10S525/927
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
207 words
A molding composition comprising A. 60-97% by weight, based on the weight of the total composition, of a poly(alkylene terephthalate) and B. 3-40% by weight, based on the weight of the total composition, of a polyether ester amide, the amount of component B being effective to increase the notch impact strength of the composition with respect to that of component A per se, component A being the condensation product of (1) 80-100 molar percent of terephthalic acid, and (2) 0-20 molar percent of another hydrocarbon aromatic-, cycloalkane- or alkane-dicarboxylic acid of 6-36 C atoms, with (3) 80-100 molar percent of a 1,n-alkanediol of 2-4C atoms, wherein n is an integer of 2 to 4, and (4) 0-20 molar percent of another alkane- or cycloalkane-diol of 3-12 C atoms, component B being the condensation product of (1) at least one polyamide-forming ω-aminoalkanecarboxylic acid or alkanelactam, each of 10-17 carbon atoms, (2) a poly(alkylene glycol) having a molecular weight of 400 to 6000, (3) at least one other alkane-, cycloalkane- or hydrocarbon aromatic-dicarboxylic acid of 4-11 carbon atoms, wherein the weight ratio of component B(1) to [B(2)+B(3)] is 20:80 to 98:2, and the hydroxy and carboxy groups in [B(2)+B(3)] are present in amounts of approximately equivalent to each other.
Claim 2
Dependent Claim
207 words
A molding composition comprising A. 60-97% by weight, based on the weight of the total composition, of a poly(alkylene terephthalate) and B. 3-40% by weight, based on the weight of the total composition, of a polyether ester amide, the amount of component B being effective to increase the notch impact strength of the composition with respect to that of component A per se, component A being the condensation product of (1) 80-100 molar percent of terephthalic acid, and (2) 0-20 molar percent of another hydrocarbon aromatic-, cycloalkane- or alkane-dicarboxylic acid of 6-36 C atoms, with (3) 80-100 molar percent of a 1,n-alkanediol of 2-4C atoms, wherein n is an integer of 2 to 4, and (4) 0-20 molar percent of another alkane- or cycloalkane-diol of 3-12 C atoms, component B being the condensation product of (1) at least one polyamide-forming ω-aminoalkanecarboxylic acid or alkanelactam, each of 10-17 carbon atoms, (2) a poly(alkylene glycol) having a molecular weight of 400 to 6000, (3) at least one other alkane-, cycloalkane- or hydrocarbon aromatic-dicarboxylic acid of 4-11 carbon atoms, wherein the weight ratio of component B(1) to [B(2)+B(3)] is 20:80 to 98:2, and the hydroxy and carboxy groups in [B(2)+B(3)] are present in amounts of approximately equivalent to each other.
Claim 3
Dependent Claim
20 words
The molding composition of claim 1, comprising 92-70% by weight of component A and 8-30% by weight of component B.
Claim 4
Dependent Claim
16 words
The molding composition of claim 1, wherein component B(1) is laurolactam, ω-aminododecanoic acid or ω-aminoundecanoic acid.
Claim 5
Dependent Claim
23 words
The molding composition of claim 1, wherein component B(1) is a polymer of an ω-aminoalkanecarboxylic acid of an average molecular weight of 500-20,000.
Claim 6
Dependent Claim
11 words
The molding composition of claim 1, wherein component B(2) is poly(tetrahydrofuran)diol.
Claim 7
Dependent Claim
15 words
The molding composition of claim 1 wherein component B(3) is sebacic acid or dodecanedioic acid.
Claim 8
Dependent Claim
16 words
The molding composition of claim 1, wherein the weight ratio of B(1) to [B(2)+B(3)] is 30-75:70-25.
Claim 9
Dependent Claim
28 words
The molding composition of claim 1, wherein the equivalents ratio of the number of OH groups to COOH groups in components B(2) and B(3) is 1:0.95 to 1:1.05.
Claim 10
Dependent Claim
25 words
The molding composition of claim 1, wherein component B(1) is laurolactam, B(2) is poly(tetrahydrofuran)diol of average molecular weight of 650-2000 and B(3) is dodecanedioic acid.
Claim 11
Dependent Claim
15 words
The molding composition of claim 1, having an average molecular weight of 5000 to 20,000.
Claim 12
Independent Claim
179 words
A method of increasing the notch impact strength of a molding composition comprising a poly(alkylene terephthalate) which is a condensation product of (1) 80-100 molar percent of terephthalic acid, and (2) 0-20 molar percent of another hydrocarbon aromatic-, cycloalkane- or alkane-dicarboxylic acid of 6-36 atoms, (3) 80-100 molar percent of 1,n-alkanediol of 2-4 C atoms, wherein n is an integer of 2 to 4, and (4) 0-20 molar percent of another alkane- or cycloalkane-diol of 3-12 C atoms, comprising including in the composition an amount, in the range of 3-40%, effective to increase notch impact strength, of a polyether ester amide which is a condensation product of (1) at least one polyamide-forming ω-aminoalkanecarboxylic acid or alkanelactam, each of 10-17 carbon atoms, (2) a poly(alkylene glycol) having a molecular weight of 400 to 6000, (3) at least one other alkane-, cycloalkane- or hydrocarbon aromatic dicarboxylic acid of 4-11 carbon atoms, wherein the weight ratio of component B(1) to [B(2)+B(3)] is 20:80 to 98:2, and the hydroxy and carboxy groups in [B(2)+B(3)] are present in amounts approximately equivalent to each other.
Claim 13
Independent Claim
179 words
A method of increasing the notch impact strength of a molding composition comprising a poly(alkylene terephthalate) which is a condensation product of (1) 80-100 molar percent of terephthalic acid, and (2) 0-20 molar percent of another hydrocarbon aromatic-, cycloalkane- or alkane-dicarboxylic acid of 6-36 atoms, (3) 80-100 molar percent of 1,n-alkanediol of 2-4 C atoms, wherein n is an integer of 2 to 4, and (4) 0-20 molar percent of another alkane- or cycloalkane-diol of 3-12 C atoms, comprising including in the composition an amount, in the range of 3-40%, effective to increase notch impact strength, of a polyether ester amide which is a condensation product of (1) at least one polyamide-forming ω-aminoalkanecarboxylic acid or alkanelactam, each of 10-17 carbon atoms, (2) a poly(alkylene glycol) having a molecular weight of 400 to 6000, (3) at least one other alkane-, cycloalkane- or hydrocarbon aromatic dicarboxylic acid of 4-11 carbon atoms, wherein the weight ratio of component B(1) to [B(2)+B(3)] is 20:80 to 98:2, and the hydroxy and carboxy groups in [B(2)+B(3)] are present in amounts approximately equivalent to each other.
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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) | 1985-01-04 | 1985-07-06 | 1986-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-04 | 1989-07-06 | 1990-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-04 | 1993-07-06 | 1994-01-05 | $7700.00 | Window Closed / Lapsed |