US4314040A
Expired / Lapsed
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Solid antistatic compositions
Assignee: Akzona Inc
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Filing: 1980-02-11
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Granted: 1982-02-02
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Expires: 2000-02-11
Abstract
Abstract A concentrated antistatic composition adapted for incorporation into various polymers such as olefins is prepared by admixing a liquid ethoxylated amine antistatic agent, such as an N,N-bis-(2-hydroxyethyl)alkenyl or mixed alkenyl and alkyl (C6-C18) amine, with various polymers such as, for example, polypropylene, heating to form a homogeneous liquid and rapidly cooling the mixture to form a solid antistatic agent. A normally liquid antistatic agent can thus be simply and readily blended into a polymer such as polyethylene as a dry, solid product to impart antistatic properties to the blended resin.
Inventors
- 👤 Anthony J. Castro
- 👤 James W. Stoll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08K; C08K5/00; C08K5/16; C08K5/17; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S524/00; Y10S524/91; Y10S524/911; Y10S524/913; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
86 words
An antistatic agent adapted for incorporation into a polymer subject to the development of electrostatic charges to render said polymer antistatic comprising a normally liquid N,N-bis-(2-hydroxyethyl) aliphatic (C 6 -C 18 ) amine having antistatic properties and a resin carrier selected from the group consisting of, polyphenylene oxide-polystyrene blends, said amine being present in an amount of about 10% to about 90%, based on the total weight of the amine and resin carrier and said antistatic agent being a solid with no visually discernible liquid phase.
Claim 2
Dependent Claim
86 words
An antistatic agent adapted for incorporation into a polymer subject to the development of electrostatic charges to render said polymer antistatic comprising a normally liquid N,N-bis-(2-hydroxyethyl) aliphatic (C 6 -C 18 ) amine having antistatic properties and a resin carrier selected from the group consisting of, polyphenylene oxide-polystyrene blends, said amine being present in an amount of about 10% to about 90%, based on the total weight of the amine and resin carrier and said antistatic agent being a solid with no visually discernible liquid phase.
Claim 3
Dependent Claim
23 words
The antistatic agent of claim 1 wherein said amine is N,N-bis-(2-hydroxyethyl) alkenyl or mixed alkenyl and alkyl (C 6 -C 18 ) amine.
Claim 4
Dependent Claim
23 words
The antistatic agent of claim 2 wherein said amine is selected from the group consisting of N,N-bis-(2-hydroxyethyl) coco amine and N,N-bis-(2-hydroxyethyl) tallow amine.
Claim 5
Dependent Claim
22 words
The antistatic agent of claim 1 wherein said amine is present in an amount of from about 50% to 75% by weight.
Claim 6
Dependent Claim
99 words
A process for the preparation of a dry, solid antistatic agent adapted for incorporation into a polymer subject to the development of electrostatic charges to render said polymer antistatic comprising admixing with a resin carrier selected from the group consisting of polyphenylene oxide-polystyrene blends, from about 10% to about 90% based on total weight of normally liquid N,N-bis-(2-hydroxyethyl) aliphatic (C 6 -C 18 ) amine having antistatic properties, heating the thus formed mixture to a temperature such that a homogeneous liquid is formed, and then rapidly cooling to form a solid antistatic agent with no visually discernible liquid phase.
Claim 7
Dependent Claim
99 words
A process for the preparation of a dry, solid antistatic agent adapted for incorporation into a polymer subject to the development of electrostatic charges to render said polymer antistatic comprising admixing with a resin carrier selected from the group consisting of polyphenylene oxide-polystyrene blends, from about 10% to about 90% based on total weight of normally liquid N,N-bis-(2-hydroxyethyl) aliphatic (C 6 -C 18 ) amine having antistatic properties, heating the thus formed mixture to a temperature such that a homogeneous liquid is formed, and then rapidly cooling to form a solid antistatic agent with no visually discernible liquid phase.
Claim 8
Dependent Claim
23 words
The process of claim 5 in which the cooling takes place within a period of between about 1/2 second to about 10 minutes.
Claim 9
Dependent Claim
22 words
The process of claim 5 wherein said amine is N,N-bis-(2-hydroxyethyl) alkenyl or mixed alkenyl and alkyl (C 6 -C 18 ) amine.
Claim 10
Dependent Claim
22 words
The process of claim 7 wherein said amine is selected from the group consisting of N,N-bis-(2-hydroxyethyl) coco amine and N,N-bis-(2-hydroxyethyl) tallow amine.
Claim 11
Dependent Claim
22 words
The process of claim 5 wherein said mixture is heated to a temperature slightly above the softening temperature of the resin carrier.
Claim 12
Independent Claim
98 words
A method for rendering antistatic a polymer subject to the development of electrostatic charges which comprises adding to said polymer in an amount effective to render said polymer antistatic an antistatic agent consisting of a normally liquid N,N-bis-(2-hydroxyethyl) aliphatic (C 6 -C 18 ) amine having antistatic properties and a resin carrier selected from the group consisting of polyphenylene oxide-polystyrene blends, said amine being present in an amount of about 10% to about 90%, based on the total weight of the amine and the resin carrier and said antistatic agent being solid with no visually discernible liquid phase.
Claim 13
Independent Claim
98 words
A method for rendering antistatic a polymer subject to the development of electrostatic charges which comprises adding to said polymer in an amount effective to render said polymer antistatic an antistatic agent consisting of a normally liquid N,N-bis-(2-hydroxyethyl) aliphatic (C 6 -C 18 ) amine having antistatic properties and a resin carrier selected from the group consisting of polyphenylene oxide-polystyrene blends, said amine being present in an amount of about 10% to about 90%, based on the total weight of the amine and the resin carrier and said antistatic agent being solid with no visually discernible liquid phase.
Claim 14
Dependent Claim
22 words
The method of claim 10 wherein said amine is N,N-bis-(2-hydroxyethyl) alkenyl and mixed alkenyl and alkyl (C 12 -C 18 ) amine.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1985-02-01 | 1985-08-03 | 1986-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-01 | 1989-08-03 | 1990-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-01 | 1993-08-03 | 1994-02-02 | $7700.00 | Window Closed / Lapsed |