US4147742A
Expired / Lapsed
US
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Solid antistatic compositions
Assignee: Akzona Inc
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Filing: 1975-10-15
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Granted: 1979-04-03
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Expires: 1995-10-15
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 19:06
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/22; C08J3/226; C08K; C08K5/00; C08K5/16; C08K5/17; C08L; C08L23/00; C08L23/02; C08L23/10; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08J2323/00; C08J2323/02; C08J2325/00; C08J2325/02; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/21
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
110 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 polypropylene, polyethylene, polystyrene, a copolymer of styrene and butadiene, a copolymer of styrene and acrylonitrile, a copolymer of ethylene and acrylic acid, and mixtures thereof, said amine being present in an amount of from about 10% to about 90%, based upon the total weight of the amine and the resin carrier and said antistatic agent being a solid with no visually discernible liquid phase.
Claim 2
Dependent Claim
110 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 polypropylene, polyethylene, polystyrene, a copolymer of styrene and butadiene, a copolymer of styrene and acrylonitrile, a copolymer of ethylene and acrylic acid, and mixtures thereof, said amine being present in an amount of from about 10% to about 90%, based upon the total weight of the amine and the 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
12 words
The antistatic agent of claim 1 wherein said resin carrier is polypropylene.
Claim 7
Dependent Claim
122 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 polypropylene, polyethylene, polystyrene, a copolymer of styrene and butadiene, a copolymer of styrene and acrylonitrile, a copolymer of ethylene and acrylic acid, and mixtures thereof, from about 10% to about 90% based upon total weight of a 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
122 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 polypropylene, polyethylene, polystyrene, a copolymer of styrene and butadiene, a copolymer of styrene and acrylonitrile, a copolymer of ethylene and acrylic acid, and mixtures thereof, from about 10% to about 90% based upon total weight of a 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 9
Dependent Claim
23 words
The process of claim 6 in which the cooling takes place within a period of between about 1/2 second to about 10 minutes.
Claim 10
Dependent Claim
22 words
The process of claim 6 wherein said amine is N,N-bis-(2-hydroxyethyl) alkenyl or mixed alkenyl and alkyl (C 6 -C 18 ) amine.
Claim 11
Dependent Claim
22 words
The process of claim 8 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 12
Dependent Claim
22 words
The process of claim 6 wherein said mixture is heated to a temperature slightly above the softening temperature of the resin carrier.
Claim 13
Dependent Claim
11 words
The process of claim 6 wherein said resin carrier is polypropylene.
Claim 14
Independent Claim
122 words
A method of 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) alphatic (C 6 -C 18 ) amine having antistatic properties and a resin carrier selected from the group consisting of polypropylene, polyethylene, polystyrene, a copolymer of styrene and butadiene, a copolymer of styrene and acrylonitrile, a copolymer of ethylene and acrylic acid, and mixtures thereof, said amine being present in an amount of from about 10% to about 90%, based upon the total weight of the amine and the resin carrier and said antistatic agent being a solid with no visually discernible liquid phase.
Claim 15
Independent Claim
122 words
A method of 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) alphatic (C 6 -C 18 ) amine having antistatic properties and a resin carrier selected from the group consisting of polypropylene, polyethylene, polystyrene, a copolymer of styrene and butadiene, a copolymer of styrene and acrylonitrile, a copolymer of ethylene and acrylic acid, and mixtures thereof, said amine being present in an amount of from about 10% to about 90%, based upon the total weight of the amine and the resin carrier and said antistatic agent being a solid with no visually discernible liquid phase.
Claim 16
Dependent Claim
28 words
The method of claim 12 wherein said polymer is a polyolefin and said amine is N,N-bis-(2-hydroxyethyl) alkenyl or mixed alkenyl and alkyl (C 12 -C 18 ) amine.
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US3708464A
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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) | 1982-04-02 | 1982-10-02 | 1983-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-02 | 1986-10-02 | 1987-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-02 | 1990-10-02 | 1991-04-03 | $7700.00 | Window Closed / Lapsed |