Epoxy/resin alloys
AssigneeEastman Chemical Resins, Inc.
InventorDaniel W. Klosiewicz
Life of this patent
Estimating the term…
Abstract
The instant invention relates to an epoxy/alkylation-type hydrocarbon resin alloy comprising an epoxy resin, an alkylation-type hydrocarbon resin, and a curative. The alkylation-type hydrocarbon resin is characterized as a product formed by an alkylation reaction between a cyclic diolefin and aromatic solvent. A particularly effective alkylation-type hydrocarbon resin in this invention is the alkylation resin formed by the reaction of dicyclopentadiene (DCPD) with alkylnaphthalene solvent. The alkylation-type hydrocarbon resin can be readily dissolved into various epoxy resins and easily processed into resin impregnated glass cloth prepreg for ultimate conversion into electronic laminate products. These epoxy/alkylation-type hydrocarbon resin alloys retain high Tg values with minimal increase in thermal expansion.
Claims34
An epoxy/alkylation hydrocarbon resin alloy comprising:
- an epoxy resin;
- an alkylation hydrocarbon resin;
- and a curative, wherein the alkylation hydrocarbon resin is an alkylation reaction product between a cyclic diolefin and an alkylnaphthalene solvent.
A prepreg comprising:
- a matrix impregnated with an epoxy/alkylation hydrocarbon resin alloy comprising;
- an epoxy resin;
- an alkylation hydrocarbon resin;
- and a curative, wherein the alkylation hydrocarbon resin is an alkylation reaction product between a cyclic diolefin and an alkylnaphthalene solvent.
A laminate comprising:
- a metal foil bonded to an outside layer of a prepreg wherein the prepreg comprises;
- a matrix impregnated with an epoxy/alkylation hydrocarbon resin alloy comprising;
- a) an epoxy resin;
- b) an alkylation hydrocarbon resin, wherein the alkylation hydrocarbon resin is an alkylation reaction product between a cyclic diolefin and an alkylnaphthalene solvent;
- and
- c) a curative.
A process of producing a prepeg comprising the steps of:
- a) dissolving an alkylation hydrocarbon resin in a liquid epoxy to form a mixture, wherein the alkylation hydrocarbon resin is an alkylation reaction product between a cyclic diolefin and an akylnaphthalene solvent;
- b) adding a curative to the alkylation hydrocarbon resin/epoxy mixture;
- c) impregnating a matrix with the alkylation hydrocarbon resin/epoxy mixture containing the curative;
- and
- d) advancing the epoxy's cure to provide the epoxy/alkylation hydrocarbon resin alloy.
Dependencies are inferred from the claim text.