US3852249A
Expired / Lapsed
US
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Antistatic agent for polymeric materials
Assignee: Yupo Corp
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Filing: 1973-03-05
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Granted: 1974-12-03
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Expires: 1993-03-05
Abstract
Abstract An antistatic agent for polymeric materials such as synthetic papers comprises a water-soluble polymer containing, as indispensable components, first and second constituent units of specific formulas and a third constituent uint based on a copolymerizable carboxylic acid or a salt thereof. The specific formulas are WHERE: R is hydrogen atom or an alkyl group with at the most 4 carbon atoms; R1, R2, and R3 are respectively alkyl groups each having at the most 4 carbon atoms; R4 is an alkyl group having at least 16 carbon atoms; and X is an anion.
Inventors
- 👤 Y Miyabe
- 👤 T Fujimoto
- 👤 S Nukina
- 👤 A Suwada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:01
CPC Classifications
C; C08; C08F; C08F212/00; C08F212/02; C08F212/04; C08F212/14; C08F212/16; C08F212/18; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/044; C08J2425/00; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/17; Y10S260/18; Y10S260/21
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
25 words
A WATER-SOLUBLE ANTISTATIC AGENT FOR POLYMERIC MATERIALS, SAID ANTISTATIC AGENT COMPRISING A WATER-SOLUBLE POLYMER CONTAINING, AS INDISPENSABLE COMPONENTS, CONSTITUENT UNITS RESPECTIVELY RESPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
25 words
A WATER-SOLUBLE ANTISTATIC AGENT FOR POLYMERIC MATERIALS, SAID ANTISTATIC AGENT COMPRISING A WATER-SOLUBLE POLYMER CONTAINING, AS INDISPENSABLE COMPONENTS, CONSTITUENT UNITS RESPECTIVELY RESPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
39 words
An antistatic agent as set forth in claim 1 in which said copolymerizable carboxylic acid or a salt thereof is a member selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, and salts of said acids.
Claim 4
Dependent Claim
29 words
An antistatic agent as set forth in claim 1 in which said salt is selected from a group consisting of alkali metal salts, amonium salts, and ethanol amine salts.
Claim 5
Dependent Claim
46 words
An antistatic agent as set forth in claim 1 in which said polymer is a polymer wherein R1 and R2 are respectively methyl groups, R3 is a methyl group, and R4 is a long-chain alkyl group having from 16 to 24 carbon atoms, R being hydrogen.
Claim 6
Dependent Claim
68 words
An antistatic agent as set forth in claim 1 in which said watersoluble polymer is a polymer comprising from 1 to 40 percent by weight of the constituent unit of Formula (1), from 50 to 95 percent by weight of the constituent unit of formula (2), and from 0.5 to 10 percent by weight of the constituent unit derived from the copolymerizable carboxylic acid or a salt thereof.
Claim 7
Dependent Claim
34 words
An antistatic agent as set forth in claim 1 in which said polymer contains, in addition to said three constituent units, up to 25 percent by weight of a unit of the following Formula:
Claim 8
Dependent Claim
25 words
An antistatic agent as set forth in claim 1 in which said polymeric materials are synthetic papers comprising a polyolefin film containing a fine filler.
Claim 9
Dependent Claim
39 words
An antistatic agent as set forth in claim 7 in which said copolymerizable carboxylic acid or a salt thereof is a member selected from the group consisting of acrylic acid, methacrylic acid, maleic acid, and salts of said acids.
Claim 10
Dependent Claim
29 words
An antistatic agent as set forth in claim 7 in which said salt is selected from the group consisting of alkali metal salts, ammonium salts, and ethanol amine salts.
Claim 11
Dependent Claim
46 words
An antistatic agent as set forth in claim 7 in which said polymer is a polymer wherein R1 and R2 are respectively methyl groups, R3 is a methyl group, and R4 is a long-chain alkyl group having from 16 to 24 carbon atoms, R being hydrogen.
Claim 12
Dependent Claim
68 words
An antistatic agent as set forth in claim 7 in which said water-soluble polymer is a polymer comprising from 1 to 40 percent by weight of the constituent unit of Formula (1), from 50 to 95 percent by weight of the constituent unit of Formula (2), and from 0.5 to 10 percent by weight of the constituent unit derived from the copolymerizable carboxylic acid or a salt thereof.
Claim 13
Dependent Claim
34 words
An antistatic agent as set forth in claim 7 in which said polymer contains, in addition to said three constituent units, up to 25 percent by weight of a unit of the following Formula:
Claim 14
Dependent Claim
30 words
An antistatic agent as set forth in claim 7 in which said synthetic papers are based on polyolefins selected from the group consisting of polyethylene, polypropylene, and resinous ethylene-propylene copolymers.
Claim 15
Dependent Claim
31 words
An antistatic agent as set forth in claim 7 in which said synthetic paper comprises a film of the polyolefin containing the fine filler stretched in at least one axial direction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |