US4749736A
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Nucleating system for polyamides
Assignee: BASF SE
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Filing: 1986-10-20
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Granted: 1988-06-07
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Expires: 2006-10-20
Abstract
Abstract This invention relates to a crystalline polyamide corporation having dispersed therein a nucleating agent composed of one or more finely divided inorganic materials, one or more fatty acid amides and one or more low molecular weight polymers selected from the group consisting of polyolefins, polyoxides and polsulfides.
Inventors
- 👤 Yash P. Khanna
- 👤 Georgette Chomyn
- 👤 Asis Banerjie
- 👤 Annemarie C. Reimschuessel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:33
CPC Classifications
C; C08; C08L; C08L77/00; C08K; C08K3/00; C08K3/01; C08K3/02; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
78 words
A composition comprising: a polyamide having dispersed therein a nucleating effective amount of a nucleating agent comprising: (a) one or more finely divided inorganic materials; (b) one or more fatty acid amides; and (c) one or more additive polymer of wax forming molecular weight selected from the group consisting of polyolefins, polyoxides and polysulfides; wherein the amount of said additive polymers is from about 5 to about 35 weight percent based on the total weight of the agent.
Claim 2
Dependent Claim
78 words
A composition comprising: a polyamide having dispersed therein a nucleating effective amount of a nucleating agent comprising: (a) one or more finely divided inorganic materials; (b) one or more fatty acid amides; and (c) one or more additive polymer of wax forming molecular weight selected from the group consisting of polyolefins, polyoxides and polysulfides; wherein the amount of said additive polymers is from about 5 to about 35 weight percent based on the total weight of the agent.
Claim 3
Dependent Claim
27 words
A composition according to claim 1 wherein said polyamide is selected from the group consisting of nylon 6, nylon 66, nylon 610, nylon 11 and nylon 12.
Claim 4
Dependent Claim
21 words
A composition according to claim 2 wherein said polyamide is selected from the group consisting of nylon 6, and nylon 66.
Claim 5
Dependent Claim
12 words
A composition according to claim 3 wherein said polyamide is nylon 6.
Claim 6
Dependent Claim
19 words
A composition according to claim 1 wherein said low molecular polymers are selected from the group consisting of polyolefins.
Claim 7
Dependent Claim
33 words
A composition according to claim 5 wherein said polyolefins are selected from the group consisting of such polyolefins in which the recurring alkylene unit comprises from about 2 to about 5 carbon atoms.
Claim 8
Dependent Claim
20 words
A composition according to claim 6 wherein said recurring alkylene unit comprises from about 2 to about 4 carbon atoms.
Claim 9
Dependent Claim
20 words
A composition according to claim 7 wherein said polyolefins are selected from the group consisting of polyethylene, polypropylene and polyisobutylene.
Claim 10
Dependent Claim
19 words
A composition according to claim 8 wherein said polyolefins are selected from the group consisting of polyethylene and polypropylene.
Claim 11
Dependent Claim
12 words
A composition according to claim 1 wherein said additive polymer is polyethylene.
Claim 12
Dependent Claim
25 words
A composition according to claim 1 wherein the viscosity (at 140° C., Brookfield) of said polymer is from about 200 cps to about 600 cps.
Claim 13
Dependent Claim
17 words
A composition according to claim 11 wherein said viscosity is from about 250 to about 550 cps.
Claim 14
Dependent Claim
17 words
A composition according to claim 12 wherein said viscosity is from about 250 to about 450 cps.
Claim 15
Dependent Claim
17 words
A composition according to claim 13 wherein said viscosity is from about 300 to about 450 cps.
Claim 16
Dependent Claim
17 words
A composition according to claim 14 wherein said viscosity is from about 350 to about 400 cps.
Claim 17
Dependent Claim
21 words
A composition according to claim 1 wherein the amount of said polymers is from about 15 to about 30 weight percent.
Claim 18
Dependent Claim
18 words
A composition according to claim 16 wherein said amount is from about 20 to about 30 weight percent.
Claim 19
Dependent Claim
17 words
A composition according to claim 16 wherein said amount is about 23 to about 27 weight percent.
Claim 20
Dependent Claim
28 words
A composition according to calim 1 wherein said fatty acid amides are selected from the group consisting of fatty acid amides having at least about 10 carbon atoms.
Claim 21
Dependent Claim
28 words
A composition according to calim 1 wherein said fatty acid amides are selected from the group consisting of fatty acid amides having at least about 10 carbon atoms.
Claim 22
Dependent Claim
26 words
A composition according to claim 19 wherein said fatty acid amides are selected from the group consisting of those having at least about 11 carbon atoms.
Claim 23
Dependent Claim
26 words
A composition according to claim 20 wherein said fatty acid amides are selected from the group consisting of lauramide, myristamide, palmitamide, stearamide, oleamide, linoleamide and linolenamide.
Claim 24
Dependent Claim
11 words
A composition according to claim 21 wherein said compositon comprises oleamide.
Claim 25
Dependent Claim
38 words
A compostion according to claim 1 wherein the amount of said fatty acid amides is from about 2 to about 15 percent by weight based on the total weight of said fatty acid amides, polymers and inorganic materials.
Claim 26
Dependent Claim
24 words
A composition according to claim 1 wherein said amount of said fatty acid amides is from about 3 to about 12 percent by weight.
Claim 27
Dependent Claim
19 words
A composition according to claim 24 wherein said amount is from about 4 to about 10 percent by weight.
Claim 28
Dependent Claim
18 words
A composition according to claim 25 wherein said amount is about 4 to about 8 percent by weight.
Claim 29
Dependent Claim
23 words
A composition according to claim 1 wherein said finely divided organic materials are selected from the group consisting of talc, mica, and kaolin.
Claim 30
Dependent Claim
11 words
A composition according to claim 27 wherein said material is talc.
Claim 31
Dependent Claim
33 words
A composition according to claim 1 wherein the amount of said material is from about 50 to about 90 weight percent based on the total weight of the material, amides and additive polymer.
Claim 32
Dependent Claim
23 words
A composition according to claim 1 wherein the amount of said finely divided material is from about 50 to about 80 weight percent.
Claim 33
Dependent Claim
18 words
A composition according to claim 30 wherein said amount is from about 65 to about 75 weight percent.
Claim 34
Dependent Claim
30 words
A composition according to claim 1 wherein said effective amount is from about 0.15 to about 1 weight percent based on the total weight of said polyamide and said agent.
Claim 35
Dependent Claim
19 words
A composition according to claim 32 wherein said effective amount is from about 0.2 to about 0.6 weight percent.
Claim 36
Dependent Claim
19 words
A composition according to claim 33 wherein said effective amount is from about 0.25 to about 0.4 weight percent.
Claim 37
Dependent Claim
95 words
A composition comprising: a polyamide having dispersed therein nucleating effective amount of a effective nucleating agent consisting essentially of: (a) from about 5 to about 35 weight percent of one or more additive polymers of wax forming molecular weight selected from the group consisting of polyolefins, polyoxides and polysulfides; (b) from about 2 to about 15 weight percent of one or ore fatty acids amides; and (c) from about 50 to about 90 weight percent of one or more finely divided materials; wherein all weight percents are based on the total weight of the comination.
Claim 38
Dependent Claim
95 words
A composition comprising: a polyamide having dispersed therein nucleating effective amount of a effective nucleating agent consisting essentially of: (a) from about 5 to about 35 weight percent of one or more additive polymers of wax forming molecular weight selected from the group consisting of polyolefins, polyoxides and polysulfides; (b) from about 2 to about 15 weight percent of one or ore fatty acids amides; and (c) from about 50 to about 90 weight percent of one or more finely divided materials; wherein all weight percents are based on the total weight of the comination.
References Cited (Backward Citations)
US3549651A
Cited
US3755221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-06-07 | 1991-12-07 | 1992-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-07 | 1995-12-07 | 1996-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-07 | 1999-12-07 | 2000-06-07 | $7700.00 | Window Closed / Lapsed |