Patent US4335223A successfully refreshed from Google Patents.
US4335223A
Expired / Lapsed
US
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High impact molding compositions
Assignee: Honeywell International Inc
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Filing: 1980-11-21
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Granted: 1982-06-15
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Expires: 2000-11-21
Abstract
Abstract Certain metal compounds such as antimony oxide and magnesium oxide are used to enhance the notched Izod impact resistance of molded objects made from selected polyamide copolymer compositions comprised of polyepsiloncaprolactam (nylon-6) or polyhexamethyleneadipamide (nylon-66) and preferably ethylene/ethyl acrylate and ethylene/acrylic acid copolymers.
Inventors
- 👤 Paul W. Flood
- 👤 Charles D. Mason
- 👤 Stephen R. Schulze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:26
CPC Classifications
C; C08; C08L; C08L77/00; C08L77/02; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
219 words
A melt-blended polyamide composition comprising: from 60 to 98 percent by weight of the composition of a polyamide selected from the group consisting of polyhexamethyleneadipamide, polyepsiloncaprolactam, and a mixture of polyhexamethyleneadipamide and polyepsiloncaprolactam, an acid copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an unsaturated carboxylic acid having 3 to 8 carbons; an ester copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an alkyl ester of an unsaturated carboxylic acid having 3 to 8 carbons and the alkyl group having 1 to 4 carbon atoms, the weight proportions between the acid copolymer and ester copolymer being from 1 part of acid copolymer to 10 parts of ester copolymer up to 30 parts acid copolymer to 1 part ester copolymer; from about 0.05 to 1.0 percent by weight based on the weight of the composition of a metal oxide having the cation of a metal selected from group IA, IB, IIA, IIB, IIIA, IVA, VA, VIB, VIIB, and VIIIB of the Periodic Table of the Elements, wherein the notched Izod impact resistance of the composition is higher than for a like composition not containing the metal oxide, the composition being blended under conditions wherein the metal compound remains substantially unreacted with the copolymer acid.
Claim 2
Dependent Claim
219 words
A melt-blended polyamide composition comprising: from 60 to 98 percent by weight of the composition of a polyamide selected from the group consisting of polyhexamethyleneadipamide, polyepsiloncaprolactam, and a mixture of polyhexamethyleneadipamide and polyepsiloncaprolactam, an acid copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an unsaturated carboxylic acid having 3 to 8 carbons; an ester copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an alkyl ester of an unsaturated carboxylic acid having 3 to 8 carbons and the alkyl group having 1 to 4 carbon atoms, the weight proportions between the acid copolymer and ester copolymer being from 1 part of acid copolymer to 10 parts of ester copolymer up to 30 parts acid copolymer to 1 part ester copolymer; from about 0.05 to 1.0 percent by weight based on the weight of the composition of a metal oxide having the cation of a metal selected from group IA, IB, IIA, IIB, IIIA, IVA, VA, VIB, VIIB, and VIIIB of the Periodic Table of the Elements, wherein the notched Izod impact resistance of the composition is higher than for a like composition not containing the metal oxide, the composition being blended under conditions wherein the metal compound remains substantially unreacted with the copolymer acid.
Claim 3
Dependent Claim
12 words
The composition as recited in claim 1 wherein said polyamide is polyhexamethyleneadipamide.
Claim 4
Dependent Claim
25 words
The composition as recited in claim 1 wherein the metal is selected from the group consisting of antimony, copper, manganese, zinc, lithium, calcium and lead.
Claim 5
Dependent Claim
14 words
The composition as recited in claim 1 wherein the metal compound is magnesium oxide.
Claim 6
Dependent Claim
15 words
The composition as recited in claim 4 wherein there is 0.1% to 0.75% magnesium oxide.
Claim 7
Dependent Claim
15 words
The composition as recited in claim 4 wherein there is 0.1% to 0.6% magnesium oxide.
Claim 8
Dependent Claim
14 words
The composition as recited in claim 1 wherein the metal compound is antimony oxide.
Claim 9
Dependent Claim
15 words
The composition as recited in claim 7 wherein there is 0.1% to 0.6% antimony oxide.
Claim 10
Dependent Claim
63 words
The composition as recited in claim 1 wherein the acid copolymer is a copolymer of ethylene and a monomer selected from the group consisting of acrylic acid, methacrylic acid, crotonic acid, maleic acid and fumaric acid and the ester copolymer is a copolymer of ethylene and a monomer selected from the group consisting of methyl acrylate, ethyl acrylate, methyl methacrylate and ethyl methacrylate.
Claim 11
Dependent Claim
21 words
The composition as recited in claim 9 wherein the acid copolymer is ethylene/acrylic acid and the ester copolymer is ethylene/ethyl acrylate.
Claim 12
Dependent Claim
56 words
The composition as recited in claim 10 wherein the ethylene/acrylic acid copolymer contains 3 to 5 mol percent of acrylic acid units and the ethylene/ethyl acrylate copolymer contains 5 to 10 mol percent of ethyl acrylate units, and each copolymer has a melt index as herein defined in the range of 2 to 20 g/10 minutes.
Claim 13
Dependent Claim
57 words
The composition as recited in claim 1 containing about 12-30 weight percent ethylene copolymers, containing from 70 to 88 weight percent of polyhexamethyleneadipamide having a melt index as herein defined in the range of 2 to 20 g/10 minutes; and containing up to 15% by weight, based on the polyamide ingredient, of polyhexamethyleneadipamide monomer and water-extractable oligomers.
Claim 14
Dependent Claim
39 words
The composition as recited in claim 1 wherein there is from 1 to 10 weight percent of the total composition of the ester copolymer, and from 1 to 30 weight percent of the total composition of the acid copolymer.
Claim 15
Dependent Claim
24 words
The composition as recited in claim 13 wherein there is from 10 to 30 weight percent of the total composition of the acid copolymer.
Claim 16
Dependent Claim
37 words
The composition as recited in claim 14 wherein the acid copolymer is ethylene acrylic acid, the ester copolymer is ethylene/ethyl acrylate and the metal compound is selected from the group consisting of magnesium oxide and antimony oxide.
Claim 17
Dependent Claim
95 words
A melt blended composition comprising: from about 60% to about 98% by weight of the composition of a polyamide selected from the group consisting of polyhexamethyleneadipamide, polyepsiloncaprolactam, and a mixture thereof; from about 2% to about 40% by weight of the composition of an ethylene acrylic acid copolymer and an ethylene/ethyl acrylate copolymer; and from 0.05% to 1.0% by weight of the composition, of a metal compound selected from the group consisting of antimony oxide and magnesium oxide the composition being blended under conditions wherein the metal compound remains substantially unreacted with the copolymer acid.
Claim 18
Dependent Claim
95 words
A melt blended composition comprising: from about 60% to about 98% by weight of the composition of a polyamide selected from the group consisting of polyhexamethyleneadipamide, polyepsiloncaprolactam, and a mixture thereof; from about 2% to about 40% by weight of the composition of an ethylene acrylic acid copolymer and an ethylene/ethyl acrylate copolymer; and from 0.05% to 1.0% by weight of the composition, of a metal compound selected from the group consisting of antimony oxide and magnesium oxide the composition being blended under conditions wherein the metal compound remains substantially unreacted with the copolymer acid.
Claim 19
Dependent Claim
16 words
The melt blended composition as recited in claim 16 wherein the metal compound is antimony oxide.
Claim 20
Dependent Claim
16 words
The melt blended composition as recited in claim 16 wherein the metal compound is magnesium oxide.
Claim 21
Dependent Claim
19 words
The melt blended composition as recited in claim 16 wherein there is 0.1% to 0.75% of the metal compound.
Claim 22
Dependent Claim
204 words
A melt blended composition comprising: from about 60% to about 98% by weight of the composition of polyepsiloncaprolactam; an acid copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an unsaturated carboxylic acid having 3 to 8 carbons; an ester copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an alkyl ester of an unsaturated carboxylic acid having 3 to 8 carbons and the alkyl group having 1 to 4 carbon atoms, the weight proportions between the acid copolymer and ester copolymer being from 1 part of acid copolymer to 10 parts of ester copolymer up to 30 parts acid copolymer to 1 part ester copolymer; from about 0.05 to 1.0 percent by weight based on the weight of the composition of a metal oxide having the cation of a metal selected from Group IA, IB, IIA, IIB, IIIA, IVA, VA, VIB, VIIB, and VIIIB of the Periodic Table of the Elements, wherein the notched Izod impact resistance of the composition is higher than for a like composition not containing the metal oxide, the composition being blended under conditions wherein the metal compound remains substantially unreacted with the copolymer acid.
Claim 23
Dependent Claim
204 words
A melt blended composition comprising: from about 60% to about 98% by weight of the composition of polyepsiloncaprolactam; an acid copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an unsaturated carboxylic acid having 3 to 8 carbons; an ester copolymer of an α-olefin having 2 to 5 carbons, with 1 to 20 mol percent of an alkyl ester of an unsaturated carboxylic acid having 3 to 8 carbons and the alkyl group having 1 to 4 carbon atoms, the weight proportions between the acid copolymer and ester copolymer being from 1 part of acid copolymer to 10 parts of ester copolymer up to 30 parts acid copolymer to 1 part ester copolymer; from about 0.05 to 1.0 percent by weight based on the weight of the composition of a metal oxide having the cation of a metal selected from Group IA, IB, IIA, IIB, IIIA, IVA, VA, VIB, VIIB, and VIIIB of the Periodic Table of the Elements, wherein the notched Izod impact resistance of the composition is higher than for a like composition not containing the metal oxide, the composition being blended under conditions wherein the metal compound remains substantially unreacted with the copolymer acid.
Claim 24
Dependent Claim
25 words
The composition as recited in claim 20 wherein the metal is selected from the group consisting of antimony, copper, manganese, zinc, lithium, calcium and lead.
Claim 25
Dependent Claim
14 words
The composition as recited in claim 17 wherein the metal compound is magnesium oxide.
Claim 26
Dependent Claim
15 words
The composition as recited in claim 19 wherein there is 0.1% to 0.75% magnesium oxide.
Claim 27
Dependent Claim
15 words
The composition as recited in claim 19 wherein there is 0.1% to 0.6% magnesium oxide.
Claim 28
Dependent Claim
14 words
The composition as recited in claim 22 wherein the metal compound is antimony oxide.
Claim 29
Dependent Claim
15 words
The composition as recited in claim 22 wherein there is 0.1% to 0.6% antimony oxide.
Claim 30
Dependent Claim
63 words
The composition as recited in claim 20 wherein the acid copolymer is a copolymer of ethylene and a monomer selected from the group consisting of acrylic acid, methacrylic acid, crotonic acid, maleic acid and fumaric acid and the ester copolymer is a copolymer of ethylene and a monomer selected from the group consisting of methyl acrylate, ethyl acrylate, methyl methacrylate and ethyl methacrylate.
Claim 31
Dependent Claim
19 words
The composition of claim 27 wherein the acid copolymer is ethylene/acrylic acid and the ester copolymer is ethylene/ethyl acrylate.
Claim 32
Dependent Claim
54 words
The composition of claim 27 wherein the ethylene/acrylic acid copolymer contains 3 to 5 mol percent of acrylic acid units and the ethylene/ethyl acrylate copolymer contains 5 to 10 mol percent of ethyl acrylate units, and each copolymer has a melt index as herein defined in the range of 2 to 20 g/10 minutes.
Claim 33
Dependent Claim
39 words
The composition as recited in claim 17 wherein there is from 1 to 10 weight percent of the total composition of the ester copolymer, and from 1 to 30 weight percent of the total composition of the acid copolymer.
Claim 34
Dependent Claim
24 words
The composition as recited in claim 28 wherein there is from 10 to 30 weight percent of the total composition of the acid copolymer.
Claim 35
Dependent Claim
36 words
The composition as recited in claim 29 wherein the acid copolymer is ethylene/acrylic acid, the ester copolymer is ethylene/ethyl acrylate and the metal compound is selected from the group consisting of magnesium oxide and antimony oxide.
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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) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |