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US 4,055,541 AGranted
Reaction products of non-cycloaliphatic epoxy resins and amine-terminated liquid polymers and process for preparation thereof
AssigneeThe B. F. Goodrich Company
InventorChangkiu Keith Riew
Life of this patent
Estimating the term…
Abstract
Room-temperature-curable compositions can be prepared readily by mixing (A) 100 parts by weight of at least one non-cycloaliphatic epoxy resin and (B) from about 1 to about 1,000 parts by weight of at least one amine-terminated liquid polymer having a carbon-carbon backbone, (C) optionally, a chain extender or crosslinker and (D) optionally, a curing agent. The compositions are useful as castable elastomeric systems, as toughened structural plastics, as paints and coatings, as sealants and adhesives, and the like.
Claims22
A composition comprising
- A. 100 parts by weight of a non-cycloaliphatic epoxy resin containing at least an average of about 1.7 oxirane groups per molecule, said resin having an epoxy equivalent weight from about 70 to about 6000, and
- B. from about 1 to about 1,000 parts by weight of an amine-terminated liquid polymer containing an average from about 1.7 to about 3 amine groups per molecule, said groups being primary, secondary or a mixture thereof, and said polymer having the formula ##STR14## wherein Y is a univalent radical obtained by removing hydrogen from an amine group of an aliphatic, alicyclic, heterocyclic or aromatic amine containing from 2 to 20 carbon atoms and at least two amine groups, at least two of said amine groups being primary, secondary or a mixture thereof, and B is a polymeric backbone consisting of carbon-carbon linkages and containing polymerized units of at least one vinylidene monomer having at least one terminal CH.sub.2 .dbd.C<
- group, said monomer being selected from the group consisting of (a) monoolefins containing 2 to 14 carbon atoms, (b) dienes containing 4 to 10 carbon atoms, (c) vinyl and allyl esters of carboxylic acids containing 2 to 8 carbon atoms, (d) vinyl and allyl ethers of alkyl radicals containing 1 to 8 carbon atoms, and (e) acrylic acids and acrylates having the formula ##STR15## said R being hydrogen or an alkyl radical containing 1 to 3 carbon atoms and said R.sup.1 being hydrogen, an alkyl radical containing 1 to 18 carbon atoms, or an alkoxyalkyl, alkylthioalkyl or cyanoalkyl radical containing 2 to 12 carbon atoms.
A process comprising reacting
- A. 100 parts by weight of a non-cycloaliphatic epoxy resin containing at least an average of about 1.7 oxirane groups per molecule, said resin having an epoxy equivalent weight from about 70 to about 6,000, and
- B. from about 1 to about 1,000 parts by weight of an amine-terminated liquid polymer containing an average from about 1.7 to about 3 amine groups per molecule, said groups being primary, secondary or a mixture thereof, and said polymer having the formula ##STR21## wherein Y is a univalent radical obtained by removing hydrogen from an amine group of an aliphatic, alicyclic, heterocyclic or aromatic amine containing from 2 to 20 carbon atoms and at least two amine groups, at least two of said amine groups being primary, secondary or a mixture thereof, and B is a polymeric backbone consisting of carbon-carbon linkages and containing polymerized units of at least one vinylidene monomer having at least one terminal CH.sub.2 .dbd.C<
- group, said monomer being selected from the group consisting of (a) monoolefins containing 2 to 14 carbon atoms, (b) dienes containing 4 to 10 carbon atoms, (c) vinyl and allyl esters of carboxylic acids containing 2 to 8 carbon atoms, (d) vinyl and allyl ethers of alkyl radicals containing 1 to 8 carbon atoms, and (e) acrylic acids and acrylates having the formula ##STR22## said R being hydrogen or an alkyl radical containing 1 to 3 carbon atoms and said R.sup.1 being hydrogen, an alkyl radical containing 1 to 18 carbon atoms, or an alkoxyalkyl, alkylthioalkyl or cyanoalkyl radical containing 2 to 12 carbon atoms.
Dependencies are inferred from the claim text.