Patent US3935145A successfully refreshed from Google Patents.
US3935145A
Expired / Lapsed
US
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Process for the manufacture of modified natural resin products
Assignee: Hoechst AG
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Filing: 1973-03-26
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Granted: 1976-01-27
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Expires: 1993-03-26
Abstract
Abstract A process for the manufacture of a modified natural resin product wherein (a) a natural resin is reacted with (b) at least one ethylenically unsaturated monomer capable of being added to a natural resin, having from 2 to 12 carbon atoms and being free from carboxylic groups and anhydride groups, and (c) and more than 5%, referred to the weight of the natural resin, of an α,β-olefinically unsaturated carboxylic acid or a derivative thereof yielding carboxylic groups under the reaction conditions. The invention is also concerned with resinous compositions, particularly adhesives and printing inks.
Inventors
- 👤 Albert Rudolphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:06
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/08; C08; C08F; C08F289/00; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553; C09F; C09F1/00; C09F1/04; C09J; C09J193/00; C09J193/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
174 words
A process for the manufacture of a natural resin product comprising reacting (a) a natural resin selected from the group consisting of colophony, wood resin, tall oil, abietic acid and levopimaric acid with (b) at least one ethylenically unsaturated monomer capable of being added to at least one of said natural resins, said monomer containing from 2 to 12 carbon atoms and being free from carboxylic groups and anhydride groups, and (c) an α, β-olefinically unsaturated carboxylic acid or a derivative thereof selected from the group consisting of anhydrides, esters and amides which provides carboxylic groups under the reaction conditions in an amount by weight equalling more than 5% of the weight of the natural resin, but less than the weight of (a) + (b); said resin product having a melting point of at least 97°C, being soluble in organic solvents and containing said natural resin in an amount equalling about 15-85% and said monomer in an amount equalling about 0.2 to 20%, both amounts being based on the total weight of the resin.
Claim 2
Dependent Claim
174 words
A process for the manufacture of a natural resin product comprising reacting (a) a natural resin selected from the group consisting of colophony, wood resin, tall oil, abietic acid and levopimaric acid with (b) at least one ethylenically unsaturated monomer capable of being added to at least one of said natural resins, said monomer containing from 2 to 12 carbon atoms and being free from carboxylic groups and anhydride groups, and (c) an α, β-olefinically unsaturated carboxylic acid or a derivative thereof selected from the group consisting of anhydrides, esters and amides which provides carboxylic groups under the reaction conditions in an amount by weight equalling more than 5% of the weight of the natural resin, but less than the weight of (a) + (b); said resin product having a melting point of at least 97°C, being soluble in organic solvents and containing said natural resin in an amount equalling about 15-85% and said monomer in an amount equalling about 0.2 to 20%, both amounts being based on the total weight of the resin.
Claim 3
Dependent Claim
33 words
A process as claimed in claim 1 wherein at least one of components (a), (b), and (c) is one of the following: (a) colophony, (b) styrene, and (c) maleic acid or maleic anhydride.
Claim 4
Dependent Claim
24 words
A process as claimed in claim 1 wherein up to one mol of the monomer is reacted with 1 mol of said natural resin.
Claim 5
Dependent Claim
37 words
A process as claimed in claim 1 wherein the reaction of said natural resin (a) and the unsaturated monomer (b) is carried out in the presence of a peroxide, a metal salt accelerator or a combination thereof.
Claim 6
Dependent Claim
49 words
A process as claimed in claim 1 wherein a product selected from the group consisting of the reaction product of claim 1 and an esterification product thereof with a polyhydric alcohol is reacted with a zinc compound, a magnesium compound or a calcium compound to yield a metal salt.
Claim 7
Dependent Claim
31 words
A process as claimed in claim 1 wherein in addition to component (c) up to 5%, calculated on the weight of said natural resin, of a non-polymerisable carboxylic acid is reacted.
Claim 8
Dependent Claim
35 words
A process as claimed in claim 1 wherein at least one further synthetic resin selected from the group consisting of coumaroneindene resins, hydrocarbons and ketone resins is reacted with the reactants or the reaction product.
Claim 9
Dependent Claim
26 words
A process as claimed in claim 1 wherein in the initial stage of the reaction the unsaturated monomer at least in part serves as a solvent.
Claim 10
Dependent Claim
25 words
A resinous composition selected from the group consisting of adhesives and printing inks in which the binding agent comprises a reaction product of claim 1.
Claim 11
Dependent Claim
24 words
An adhesive as claimed in claim 9 wherein the binding agent consists of a combination of the reaction product of claim 1 and polychlorobutadiene.
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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) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |