Patent US4042558A successfully refreshed from Google Patents.
US4042558A
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Filled polymerization products based on carbodiimide copolymers
Assignee: Bayer AG
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Filing: 1976-07-26
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Granted: 1977-08-16
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Expires: 1996-07-26
Abstract
Abstract This invention is concerned with polymerizable compositions, a process for producing and polymerizing such compositions and the resultant polymerization product. Compositions comprising the reaction product of polycarbodiimides and α,β-unsaturated carboxylic acids are dissolved in vinyl monomers and subject to free-radical polymerization. The polymerization product may contain up to about 300 weight percent of conventional fillers.
Inventors
- 👤 Wulf von Bonin
- 👤 Lothar Preis
- 👤 Ulrich VON Gizycki
- 👤 Manfred Dahm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:30
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/04; Y; Y10; Y10S; Y10S525/00; Y10S525/907
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
34 words
A process for the production of polymerization products comprising subjecting solutions of the reaction products of polycarbodiimides and α, β-unsaturated carboxylic acids in about 5 to 95 weight percent vinyl monomers to free-radical polymerization.
Claim 2
Dependent Claim
34 words
A process for the production of polymerization products comprising subjecting solutions of the reaction products of polycarbodiimides and α, β-unsaturated carboxylic acids in about 5 to 95 weight percent vinyl monomers to free-radical polymerization.
Claim 3
Dependent Claim
16 words
The process of claim 1, wherein the polycarbodiimides are formed in situ in the vinyl monomer.
Claim 4
Dependent Claim
24 words
The process of claim 1, wherein the reaction products of polycarbodiimides and α, β-unsaturated carboxylic acids are prepared in situ in the vinyl monomer.
Claim 5
Dependent Claim
30 words
The process of claim 1, wherein the polycarbodiimides or their reaction products with the α, β-unsaturated carboxylic acids are dissolved in the form of prepared compounds in the vinyl monomer.
Claim 6
Dependent Claim
23 words
The process of claim 1 wherein in addition to α, β-unsaturated carboxylic acids, non-free-radically polymerizable carboxylic acids are also reacted with the polycarbodiimides.
Claim 7
Dependent Claim
20 words
The process of claim 1, wherein the polycarbodiimides used are obtained by the intermolecular elimination of CO 2 from isocyanates.
Claim 8
Dependent Claim
13 words
The process of claim 6, wherein polycarbodiimides based on aromatic diisocyanates are used.
Claim 9
Dependent Claim
13 words
The process of claim 6, wherein polycarbodiimides based on (cyclo)aliphatic diisocyanates are used.
Claim 10
Dependent Claim
16 words
The process of claim 1 wherein (meth)acrylic acid is used as the α, β-unsaturated carboxylic acid.
Claim 11
Dependent Claim
20 words
The process of claim 1, wherein fumaric acid or maleic acid semiesters are used as the α, β-unsaturated carboxylic acids.
Claim 12
Dependent Claim
15 words
The process of claim 1, wherein aromatic vinyl compounds are used as the vinyl monomers.
Claim 13
Dependent Claim
15 words
The process of claim 1, wherein (meth)acrylic acid esters are used as the vinyl monomers.
Claim 14
Dependent Claim
8 words
The product of the process of claim 1.
Claim 15
Dependent Claim
120 words
A process for the production of polymerization products comprising: a. reacting polyisocyanates in the presence of carbodiimide formation catalysts to form polycarbodiimides with molecular weights greater than 300 and containing at least 2 carbodiimide groups per molecule, b. reacting said polycarbodiimide with between about 0.05 and 2 moles of α, β-unsaturated carboxylic acids per mole of said polyisocyanates used to form said polycarbodiimide at a temperature of about 5° to 120° C, such that there is at least one mole of said acid for each mole of polycarbodiimide, and c. free-radically polymerizing said polycarbodiimide carboxylic reaction product in a solution containing about 5 to 95 weight percent of a vinyl monomer at a temperature between about -25° and 280° C.
Claim 16
Dependent Claim
120 words
A process for the production of polymerization products comprising: a. reacting polyisocyanates in the presence of carbodiimide formation catalysts to form polycarbodiimides with molecular weights greater than 300 and containing at least 2 carbodiimide groups per molecule, b. reacting said polycarbodiimide with between about 0.05 and 2 moles of α, β-unsaturated carboxylic acids per mole of said polyisocyanates used to form said polycarbodiimide at a temperature of about 5° to 120° C, such that there is at least one mole of said acid for each mole of polycarbodiimide, and c. free-radically polymerizing said polycarbodiimide carboxylic reaction product in a solution containing about 5 to 95 weight percent of a vinyl monomer at a temperature between about -25° and 280° C.
Claim 17
Dependent Claim
60 words
A polymerization product comprising the free-radical polymerization product of: 1. the reaction product of a polycarbodiimide having a molecular weight of at least 300 and containing at least two carbodiimide groups per molecule with at least one mole of an α, β-unsaturated carboxylic acid per mole of said polycarbodiimide with 2. 5 to 95 weight percent of a vinyl monomer.
Claim 18
Dependent Claim
60 words
A polymerization product comprising the free-radical polymerization product of: 1. the reaction product of a polycarbodiimide having a molecular weight of at least 300 and containing at least two carbodiimide groups per molecule with at least one mole of an α, β-unsaturated carboxylic acid per mole of said polycarbodiimide with 2. 5 to 95 weight percent of a vinyl monomer.
Claim 19
Dependent Claim
15 words
The polymerization product of claim 15 which contains up to 300 weight percent of fillers.
Claim 20
Dependent Claim
48 words
The polymerization product of claim 16, wherein the filler is selected from the group consisting of chalk, calcium oxide, calcium hydroxide, quartz powder, glass beads, talcum, graphite, carbon blacks, glass fibers, potassium titanate, gypsum, carbon fibers, steel fibers, metal powders, polymer powders, water droplets and hollow glass beads.
Claim 21
Dependent Claim
54 words
A polymerizable composition comprising 1. the reaction product of a polycarbodiimide having a molecular weight of at least 300 and containing at least two carbodiimide groups per molecule with at least one mole of an α, β-unsaturated carboxylic acid per mole of polycarbodiimide, and 2. 5 to 95 weight percent of a vinyl monomer.
Claim 22
Dependent Claim
54 words
A polymerizable composition comprising 1. the reaction product of a polycarbodiimide having a molecular weight of at least 300 and containing at least two carbodiimide groups per molecule with at least one mole of an α, β-unsaturated carboxylic acid per mole of polycarbodiimide, and 2. 5 to 95 weight percent of a vinyl monomer.
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) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |