Patent EP0335406A2 successfully refreshed from Google Patents.
EP0335406A2
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EP
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Low profile molding system
Assignee: Union Carbide Corp
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Filing: 1989-03-30
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Granted: —
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Expires: 2009-03-30
Abstract
Abstract A molding additive composition comprising a mixture of a low profile additive and a surfactant additive containing a silicon-oxyalkylene copolymer flow control agent and surface modifying agent; and a molding composition comprising a polyester molding resin, a low profile additive, and a silicon-oxyalkylene copolymer flow control agent and surface modifying agent. A desirable ingredient of the compositions of the invention is a crosslinking monomer. In its most favorable embodiment, the invention embraces a molding composition comprising a polyester molding resin, a crosslinking monomer, a low profile additive, a reinforcing fiber, and a silicon-oxyalkylene copolymer flow control agent and surface modifying agent.
Inventors
- 👤 Kenneth Earl Atkins
- 👤 Robert Ray Gentry
- 👤 Raymond Cornelius Gandy
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 15:41
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/06; C08L63/00; C08L63/10
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
26 words
A molding additive composition comprising a mixture of low profile additive and a surfactant additive containing a silicon-oxyalkylene copolymer flow control agent and surface modifying agent.
Claim 2
Dependent Claim
26 words
A molding additive composition comprising a mixture of low profile additive and a surfactant additive containing a silicon-oxyalkylene copolymer flow control agent and surface modifying agent.
Claim 3
Dependent Claim
14 words
The molding additive composition of claim 1 wherein there is present a crosslinking monomer.
Claim 4
Dependent Claim
24 words
The molding additive composition of claim 2 wherein the crosslinking monomer is an olefinically unsaturated compound, preferably an olefinically unsaturated hydrocarbon such as styrene.
Claim 5
Dependent Claim
54 words
The molding additive composition of any one of claims 1 to 3 wherein the silicon-oxyalkylene copolymer contains a) at least one silicon per molecule; b) at least 2 alkylene oxide moieties in a sequence per molecule; and c) the alkylene oxides are bonded to silicon in the molecule through a carbon to silicon bond.
Claim 6
Dependent Claim
33 words
The molding additive composition of any one of claims 1 to 4 wherein the low profile additive is a thermoplastic polymer having a molecular weight greater than that of the silicon oxyalkylene copolymer.
Claim 7
Dependent Claim
18 words
The molding additive composition of any one of claims 1 to 5 containing a non-silicon containing polyoxyalkylene material.
Claim 8
Dependent Claim
26 words
A molding composition comprising a) a polyester molding resin b) a low profile additive, and c) a silicon-oxyalkylene copolymer flow control agent and surface modifying agent.
Claim 9
Dependent Claim
26 words
A molding composition comprising a) a polyester molding resin b) a low profile additive, and c) a silicon-oxyalkylene copolymer flow control agent and surface modifying agent.
Claim 10
Dependent Claim
14 words
The molding composition of claim 7 wherein there is provided therein a crosslinking monomer.
Claim 11
Dependent Claim
22 words
The molding composition of claim 7 or 8 wherein the silicon-oxyalkylene copolymer contains a functional group reactive with the polyester molding resin.
Claim 12
Dependent Claim
14 words
The molding composition of claim 9 wherein the functional group is an olefinic unsaturation.
Claim 13
Dependent Claim
18 words
The molding composition of any one of claims 7 to 10 wherein there is provided a reinforcing fiber.
Claim 14
Dependent Claim
17 words
The molding composition of claim 11 wherein the reinforcing fiber is glass fiber, for instance, staple fiber.
Claim 15
Dependent Claim
20 words
The molding composition of claim 11 wherein the reinforcing fiber is carbon fiber, for instance, in the form of graphite.
Claim 16
Dependent Claim
33 words
A resin additive composition comprising a surfactant additive containing a) a silicon-oxyalkylene copolymer flow control agent and surface modifying agent for the thermosetting resins containing low profile additives and b) a crosslinking agent.
Claim 17
Dependent Claim
33 words
A resin additive composition comprising a surfactant additive containing a) a silicon-oxyalkylene copolymer flow control agent and surface modifying agent for the thermosetting resins containing low profile additives and b) a crosslinking agent.
Claim 18
Dependent Claim
13 words
The resin additive composition of claim 14 wherein the crosslinking agent is styrene.
Claim 19
Dependent Claim
80 words
An improved low profile additive molding composition comprising a) a thermosetting polyester resin, b) from about 25 to 70 weight percent of a crosslinkable olefinically unsaturated monomer that is crosslinkable with the polyester resin, c) from about 1 to 25 weight percent of a thermoplastic low profile additive for shrinkage control, and d) an effective amount of silicon-oxyalkylene copolymer flow control agent and surface modifying agent; all weights being based on the combined weight of components (a), (b), and (c).
Claim 20
Dependent Claim
80 words
An improved low profile additive molding composition comprising a) a thermosetting polyester resin, b) from about 25 to 70 weight percent of a crosslinkable olefinically unsaturated monomer that is crosslinkable with the polyester resin, c) from about 1 to 25 weight percent of a thermoplastic low profile additive for shrinkage control, and d) an effective amount of silicon-oxyalkylene copolymer flow control agent and surface modifying agent; all weights being based on the combined weight of components (a), (b), and (c).
Claim 21
Dependent Claim
19 words
The low profile additive molding composition of claim 16 wherein the thermosetting polyester resin comprises a vinyl ester resin.
References Cited (Backward Citations)
No citation records indexed.
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