US5059657A
Expired / Lapsed
US
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Polymerization of selected vinyl monomers
Assignee: EIDP Inc
•
Filing: 1990-08-06
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Granted: 1991-10-22
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Expires: 2010-08-06
Abstract
Abstract A process for the polymerization of selected acrylic and maleimide monomers by contacting the monomers with a diazotate, cyanate or hyponitrite, and N-chlorosuccinimide, N-bromosuccinimide or a diazonium salt. The polymers produced can themselves initiate further polymerization. Block copolymers can be produced.
Inventors
- 👤 Joe D. Druliner
- 👤 Michael Fryd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:36
CPC Classifications
C; C08; C08F; C08F293/00; C08F220/00; C08F220/02; C08F220/10; C08F220/12
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
96 words
A process for the polymerization of vinyl monomers, comprising, contacting: (a) an acrylic monomer or N-phenylmaleimide; (b) a diazotate of the formula Ar 1 --N═N--O--M + , or a cyanate of the formula MOCN, or a hyponitrite of the formula M 2 N 2 O 2 , wherein Ar 1 is aryl or substituted aryl, and M is a metal or a tetrahydro-carbylammonium ion; and (c) N-chlorosuccinimide, N-bromosuccinimide, or a diazonium salt of the formula Ar 2 N 2 + X - , wherein Ar 2 is aryl or substituted aryl, and X is an anion.
Claim 2
Dependent Claim
96 words
A process for the polymerization of vinyl monomers, comprising, contacting: (a) an acrylic monomer or N-phenylmaleimide; (b) a diazotate of the formula Ar 1 --N═N--O--M + , or a cyanate of the formula MOCN, or a hyponitrite of the formula M 2 N 2 O 2 , wherein Ar 1 is aryl or substituted aryl, and M is a metal or a tetrahydro-carbylammonium ion; and (c) N-chlorosuccinimide, N-bromosuccinimide, or a diazonium salt of the formula Ar 2 N 2 + X - , wherein Ar 2 is aryl or substituted aryl, and X is an anion.
Claim 3
Dependent Claim
50 words
The process as recited in claim 1 wherein said (a) component is a compound of the formula ##STR5## wherein the open valence is attached to a hydrocarbyloxy or substituted hydrocarbyloxy group, or a hydroxy group, and R 3 is an alkyl group containing up to 4 carbon atoms or hydrogen.
Claim 4
Dependent Claim
15 words
The process as recited in claim 2 wherein said R 3 is hydrogen or methyl.
Claim 5
Dependent Claim
37 words
The process as recited in claim 3 wherein said (a) component is acrylic acid, methacrylic acid, methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, butyl methacrylate, 2-ethylhexyl methacrylate, phenyl acrylate, cyclohexyl methacrylate, 2-hydroxyethyl acrylate, or 2-hydroxyethyl methacrylate.
Claim 6
Dependent Claim
16 words
The process as recited in claim 1 wherein said M is an alkali metal or tetraalkylammonium.
Claim 7
Dependent Claim
18 words
The process as recited in claim 1 wherein said Ar 1 contains one or more electron withdrawing substituents.
Claim 8
Dependent Claim
15 words
The process as recited in claim 1 wherein said Ar 1 is p-nitrophenyl or p-cyanophenyl.
Claim 9
Dependent Claim
16 words
The process as recited in claim 7 wherein said M is an alkali metal or tetraalkylammonium.
Claim 10
Dependent Claim
15 words
The process as recited in claim 1 wherein said Ar 2 is derived from benzene.
Claim 11
Dependent Claim
15 words
The process as recited in claim 9 wherein said Ar 2 is phenyl, or p-nitrophenyl.
Claim 12
Dependent Claim
15 words
The process as recited in claim 8 wherein said Ar 2 is phenyl or p-nitrophenyl.
Claim 13
Dependent Claim
14 words
The process as recited in claim 1 wherein said (b) component is said diazotate.
Claim 14
Dependent Claim
14 words
The process as recited in claim 1 wherein said (b) component is said cyanate.
Claim 15
Dependent Claim
14 words
The process as recited in claim 1 wherein said (b) component is said hyponitrite.
Claim 16
Dependent Claim
15 words
The process as recited in claim 1 wherein said (c) component is said diazonium salt.
Claim 17
Dependent Claim
15 words
The process as recited in claim 1 wherein said (c) component is N-chlorosuccinimide or N-bromosuccinimide.
Claim 18
Dependent Claim
16 words
The process as recited in claim 1 wherein said X is chloride, hexafluorophosphate, hexafluoroantimonate, or tetrafluoroborate.
Claim 19
Dependent Claim
16 words
The process as recited in claim 15 wherein said X is chloride, hexafluorophosphate, hexafluoroantimonate, or tetrafluoroborate.
Claim 20
Dependent Claim
18 words
The process as recited in claim 1 wherein the temperature is about -20° C. to about 120° C.
Claim 21
Dependent Claim
18 words
The process as recited in claim 19 wherein said temperature is about 0° C. to about 60° C.
Claim 22
Dependent Claim
18 words
The process as recited in claim 20 wherein said temperature is about 10° C. to about 40° C.
Claim 23
Dependent Claim
11 words
The process as recited in claim 1 carried out in solution.
Claim 24
Dependent Claim
12 words
The process as recited in claim 1 carried out as a suspension.
Claim 25
Dependent Claim
14 words
The process as recited in claim 23 wherein said suspension is an aqueous suspension.
Claim 26
Dependent Claim
12 words
The process as recited in claim 1 carried out as an emulsion.
Claim 27
Dependent Claim
14 words
The process as recited in claim 25 wherein said emulsion is an aqueous emulsion.
Claim 28
Dependent Claim
13 words
The process as recited in claim 1 wherein a block copolymer is produced.
Claim 29
Dependent Claim
15 words
The process as recited in claim 1, comprising the further step of a secondary polymerization.
Claim 30
Dependent Claim
22 words
The process as recited in claim 28 wherein said secondary polymerization is carried out at about 80° C. to about 120° C.
Claim 31
Dependent Claim
15 words
The process as recited in claim 3, comprising the further step of a secondary polymerization.
Claim 32
Dependent Claim
14 words
The process as recited in claim 28, wherein the product is a block copolymer.
Claim 33
Dependent Claim
14 words
The process as recited in claim 30, wherein the product is a block copolymer.
Claim 34
Dependent Claim
22 words
The process as recited in claim 29 wherein said secondary polymerization is carried out at about 90° C. to about 100° C.
Claim 35
Dependent Claim
15 words
The process as recited in claim 5 wherein said M is sodium, potassium or tetraalkylammonium.
References Cited (Backward Citations)
US2376963A
Cited
US2845403A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-10-21 | 1995-04-22 | 1995-10-22 | $2000.00 | Window Closed / Lapsed |
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