US3894984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of curable polyester molding compositions
Assignee: BASF SE
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Filing: 1974-03-04
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Granted: 1975-07-15
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Expires: 1994-03-04
Abstract
Abstract A process for the manufacture of curable unsaturated polyester molding compositions. To a mixture of A. AT LEAST ONE UNSATURATED POLYESTER, B. AT LEAST ONE COPOLYMERIZABLE OLEFINICALLY UNSATURATED COMPOUND, C. AN ALKALINE EARTH METAL OXIDE AND/OR HYDROXIDE, D. AT LEAST ONE INHIBITOR AND, OPTIONALLY, E. CONVENTIONAL FILLERS, REINFORCING AGENTS, INERT SOLVENTS, POLYMERIZATION ACCELERATORS AND/OR OTHER AUXILIARIES CONVENTIONALLY USED IN THE PROCESSING OF POLYESTER MOLDING COMPOSITIONS, THERE IS ADDED FROM 0.005 TO 1% BY WEIGHT, BASED ON UNSATURATED POLYESTER RESIN (A) PLUS (B), OR AT LEAST ONE COMPOUND OF THE GENERAL FORMULA
Inventors
- 👤 Kurt Demmler
- 👤 Wolfgang Koser
- 👤 Anton Hesse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/91; C08G63/914; C08G63/918; C08K; C08K3/00; C08K3/01; C08K5/00; C08K5/04; C08K5/05
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
184 words
IN A PROCESS FOR THE MANUFACTURE OF AN UNSATURATED POLYESTER RESIN MOLDING COMPOSITION WHICH IS CURABLE IN THE PRESENCE OF A POLYMERIZATION INITIATOR AND WHICH COMPRISES A MIXTURE OF: A. AT LEAST ONE UNSATURATED POLYESTER RESIN WHICH IS A POLYCONDENSATE CONSISTING ESSENTIALLY OF A POLYBASIC CARBOXYLIC ACID AND A POLYHYDRICALCOHOL AS MONOMERIC UNITS, AT LEAST A PORTION OF THE MONOMERIC UNITS BEING ETHYLENICALLY UNSATURATED, B. 15 TO 50% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), OF AT LEAST ONE COPOLYMERIZABLE OLEFINICALLY UNSATURATED VINYL OR ALLYL COMPOUND, C. 0.05 TO 10% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE, CALCIUM HYDROXIDE AND MANGNESIUM OXIDE, AND D. 0.005 TO 0.1% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), OF AT LEAST ONE POLYMERIZATION INHIBITOR, THE IMPROVEMENT OF ACCELERATING THE THICKENING OF SAID MOLDING COMPOSITION BY ADDING THERETO 0.005 TO 1% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), AT LEAST ONE COMPOUND (F) OF THE FORMULA
Claim 2
Dependent Claim
184 words
IN A PROCESS FOR THE MANUFACTURE OF AN UNSATURATED POLYESTER RESIN MOLDING COMPOSITION WHICH IS CURABLE IN THE PRESENCE OF A POLYMERIZATION INITIATOR AND WHICH COMPRISES A MIXTURE OF: A. AT LEAST ONE UNSATURATED POLYESTER RESIN WHICH IS A POLYCONDENSATE CONSISTING ESSENTIALLY OF A POLYBASIC CARBOXYLIC ACID AND A POLYHYDRICALCOHOL AS MONOMERIC UNITS, AT LEAST A PORTION OF THE MONOMERIC UNITS BEING ETHYLENICALLY UNSATURATED, B. 15 TO 50% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), OF AT LEAST ONE COPOLYMERIZABLE OLEFINICALLY UNSATURATED VINYL OR ALLYL COMPOUND, C. 0.05 TO 10% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE, CALCIUM HYDROXIDE AND MANGNESIUM OXIDE, AND D. 0.005 TO 0.1% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), OF AT LEAST ONE POLYMERIZATION INHIBITOR, THE IMPROVEMENT OF ACCELERATING THE THICKENING OF SAID MOLDING COMPOSITION BY ADDING THERETO 0.005 TO 1% BY WEIGHT, BASED ON THE TOTAL WEIGHT OF COMPONENTS (A) AND (B), AT LEAST ONE COMPOUND (F) OF THE FORMULA
Claim 3
Dependent Claim
54 words
A process as claimed in claim 1, wherein there is additionally added at least one hydroxyl compound selected from the group consisting of water, methanol, ethanol, isopropanol, n-propanol, butanol, ethylene glycol and propylene glycol-1,2 in an amount of from 0.05 to 5% by weight, based on the total weight of components (a) and (b).
Claim 4
Dependent Claim
84 words
A process as claimed in claim 1, wherein said polyester resin molding composition additionally contains at least one substance used in unsaturated polyester molding compositions and selected from the group consisting of fillers, reinforcing substances and inert solvents, wherein fillers and reinforcing substances are added in an amount of from 5 to 200% by weight, based on the total weight of components (a) to (d), and an inert solvent is added in an amount of up to 100% by weight, based on component (a).
Claim 5
Dependent Claim
54 words
A process as claimed in claim 3, wherein there is additionally added at least one hydroxyl compound selected from the group consisting of water, methanol, ethanol, isopropanol, n-propanol, butanol, ethylene glycol and propylene glycol-1,2 in an amount of from 0.05 to 5% by weight, based on the total weight of components (a) and (b).
Claim 6
Dependent Claim
27 words
A process as claimed in claim 1, wherein component (b) is a compound selected from the group consisting of sytrene, vinyl toluene, Alpha -methylstyrene and diallyl phthalate.
Claim 7
Dependent Claim
29 words
A process as claimed in claim 1 wherein the amount of component (b), based on the total weight of components (a) and (b), is 20 to 40% by weight.
Claim 8
Dependent Claim
29 words
A process as claimed in claim 5, wherein the amount of component (b), based on the total weight of components (a) and (b), is 20 to 40% by weight.
Claim 9
Dependent Claim
37 words
A process as claimed in claim 1, wherein the compound of the formula Z On Xm is at least one compound selected from the group consisting of HCl, HBr, PCl3, POCl3, SOCl2, SO2Cl2, SiCl4, SnCl4 and TiCl4.
Claim 10
Dependent Claim
38 words
A process as claimed in claim 2, wherein the compound of the general formula Z On Xm is at least one compound selected from the group consisting of HCl, HBr, PCl3, POCl3, SOCl2, SO2Cl2, SiCl4, SnCl4 and TiCl4.
Claim 11
Dependent Claim
37 words
A process as claimed in claim 4, wherein the compound of the formula Z On Xm is at least one compound selected from the group consisting of HCl, HBr, PCl3, POCl3, SOCl2, SO2Cl2, SiCl4, SnCl4 and TiCl4.
Claim 12
Dependent Claim
44 words
A process as claimed in claim 1, wherein the compound of the formula Z On Xm is added to a solution of the unsaturated polyester (a) in (b) or in an inert solvent prior to or during mixing with the components (b) to (d).
Claim 13
Dependent Claim
41 words
A process as claimed in claim 3, wherein the compound of the fOrmula Z On Xm is added to a solution of the unsaturated polyester (a) in (b) or an inert solvent prior to or during mixing with the other components.
Claim 14
Dependent Claim
41 words
A process as claimed in claim 4, wherein the compound of the formula Z On Xm is added to a solution of the unsaturated polyester (a) in (b) or an inert solvent prior to or during mixing with the other components.
Claim 15
Dependent Claim
43 words
A process as claimed in claim 1, wherein the unsaturated polyester molding composition contains, based on the total weight of components (a) and (b), from 0.2 to 3% by weight of component (c) and from 0.01 to 0.05% by weight of component (d).
Claim 16
Dependent Claim
14 words
A process as claimed in claim 1, wherein the component (c) is magnesium oxide.
Claim 17
Dependent Claim
46 words
A process as claimed in claim 1, wherein the compound of the formula Z On Xm is added to the unsaturated polyester molding composition in an amount of from 0.04 to 0.2% by weight, based on the total weight of unsaturated polyester resin (a) plus (b).
Claim 18
Dependent Claim
59 words
A process as claimed in claim 2, wherein from 0.04 to 0.2% by weight of a compound of the formula Z On Xm and from 0.1 to 2% by weight of at least one hydroxyl compound are added to the unsaturated polyester molding compositions, the percentages being based on the total weight of unsaturated polyester resin (a) plus (b).
References Cited (Backward Citations)
US3538188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |