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US4304703A
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Cationic polymer dispersions and their method of preparation
Assignee: PPG Industries Ohio Inc
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Filing: 1980-06-23
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Granted: 1981-12-08
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Expires: 2000-06-23
Abstract
Abstract Polymeric products containing cationic salt groups, their method of polymerization and their use in coating applications are disclosed. The dispersions are prepared by dispersing in water an at least partially neutralized amine group-containing polymer followed by adding a polymerizable ethylenically unsaturated monomer composition to the dispersion and subjecting the dispersion to addition polymerization conditions. The resultant dispersions are useful in coating applications.
Inventors
- 👤 Suryya K. Das
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:02
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10S524/902
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
78 words
A cationic polymeric product which is prepared by polymerizing under addition polymerization conditions in aqueous medium: (A) a polymerizable ethylenically unsaturated monomer composition, in the presence of (B) an at least partially phosphoric acid neutralized amine group-containing polymeric dispersant which is formed from polymerizing a mixture of vinyl monomers, a portion of which contains amine functionality, (C) a free radical polymerization initiator and a chain transfer agent which are soluble in the polymerizable ethylenically unsaturated monomer composition (A).
Claim 2
Dependent Claim
78 words
A cationic polymeric product which is prepared by polymerizing under addition polymerization conditions in aqueous medium: (A) a polymerizable ethylenically unsaturated monomer composition, in the presence of (B) an at least partially phosphoric acid neutralized amine group-containing polymeric dispersant which is formed from polymerizing a mixture of vinyl monomers, a portion of which contains amine functionality, (C) a free radical polymerization initiator and a chain transfer agent which are soluble in the polymerizable ethylenically unsaturated monomer composition (A).
Claim 3
Dependent Claim
31 words
The product of claim 1 in which the monomer composition (A) includes an alkyl ester of acrylic or methacrylic acid containing from 1 to 18 carbon atoms in the alkyl group.
Claim 4
Dependent Claim
13 words
The product of claim 1 in which the monomer composition (A) includes styrene.
Claim 5
Dependent Claim
86 words
The product of claim 1 in which the amine group-containing vinyl polymer is formed from polymerizing the following mixture of copolymerizable ethylenically unsaturated monomers: (A) 5 to 50 percent of a copolymerizable ethylenically unsaturated basic amino compound containing up to 26 carbon atoms, (B) 0 to 75 percent of at least one alkyl ester of acrylic or methacrylic acid having from 1 to 18 carbon atoms in the alkyl radical, (C) 20 to 95 percent of a copolymerizable ethylenically unsaturated monomer different from (A) and (B).
Claim 6
Dependent Claim
83 words
The product of claim 4 in which the copolymerizable ethylenically unsaturated basic amino compound has the following structural formula: ##STR2## wherein R 1 is hydrogen or methyl, R 2 and R 3 are the same or different and are members of the class consisting of hydrogen and alkyl having 1 to 6 carbon atoms, n is one of the integers 1 to 6, and A is oxygen or NR 4 where R 4 is hydrogen or alkyl having 1 to 4 carbon atoms.
Claim 7
Dependent Claim
17 words
The product of claim 4 in which the copolymerizable monomer component (C) is a vinyl aromatic compound.
Claim 8
Dependent Claim
13 words
The product of claim 6 in which the vinyl aromatic compound is styrene.
Claim 9
Dependent Claim
25 words
The product of claim 1 in which the free radical polymerization initiator is selected from the class consisting of peroxides, azo compounds and diazo compounds.
Claim 10
Dependent Claim
14 words
The product of claim 1 in which the chain transfer agent is tertiary-dodecyl mercaptan.
Claim 11
Dependent Claim
19 words
An aqueous dispersion of the polymeric products of claims 1, 2, 3, 4, 5, 6, 7, 8 or 9.
Claim 12
Dependent Claim
88 words
A process for preparing a polymeric product, comprising: (A) dispersing in aqueous medium in the presence of an at least partially phosphoric acid neutralized amine group-containing polymer dispersant which is formed from polymerizing a mixture of vinyl monomers, a portion of which contains amine functionality, a polymerizable ethylenically unsaturated monomer composition, a free radical initiator and a chain transfer agent which are soluble in the polymerizable ethylenically unsaturated monomer composition, and (B) subjecting said dispersion to addition polymerization conditions to form the polymeric product dispersed in aqueous medium.
Claim 13
Dependent Claim
88 words
A process for preparing a polymeric product, comprising: (A) dispersing in aqueous medium in the presence of an at least partially phosphoric acid neutralized amine group-containing polymer dispersant which is formed from polymerizing a mixture of vinyl monomers, a portion of which contains amine functionality, a polymerizable ethylenically unsaturated monomer composition, a free radical initiator and a chain transfer agent which are soluble in the polymerizable ethylenically unsaturated monomer composition, and (B) subjecting said dispersion to addition polymerization conditions to form the polymeric product dispersed in aqueous medium.
Claim 14
Dependent Claim
25 words
The process of claim 11 in which the free radical polymerization initiator is selected from the class consisting of peroxides, azo compounds and diazo compounds.
Claim 15
Dependent Claim
14 words
The process of claim 11 in which the chain transfer agent is tertiary-dodecyl mercaptan.
References Cited (Backward Citations)
US3993716A
Cited
US4097438A
Cited
US4033917A
Cited
US4055527A
Cited
US4075135A
Cited
US4064087A
Cited
US4085161A
Cited
US4115227A
Cited
US4137282A
Cited
US4151143A
Cited
US4195147A
Cited
US4198495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-07 | 1985-06-08 | 1985-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-07 | 1989-06-08 | 1989-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-07 | 1993-06-08 | 1993-12-08 | $7700.00 | Window Closed / Lapsed |