摘要:
The process for preparing a polymeric composition at improved rate comprising reacting an oxazoline compound and a phenolic compound in the presence of a catalytic amount of a phosphorous acid ester is described.
摘要:
Thermoplastic and thermoset polymeric compositions, having particular utility in the area of molding applications, are obtained by reacting a compound containing a plurality of oxazoline groups with a phenol or a phenolic resin each containing a plurality of aromatic hydroxyl groups.
摘要:
A novel polymer comprising the reaction product of a first vinyl monomer and a second vinyl monomer which is an alkenyl succinic anhydride having the formula: ##STR1## These polymers are useful as epoxy curatives, boiler scale removers, detergent builders, thickeners and coatings.
摘要:
A class of trialkylammonium -N-[.beta. (1-aziridinyl)] propionoylimines and methods for preparing the same are described. These compounds find particular usefulness in the polymer art either as monomers, difunctional cross-linking agents or as modifiers for a variety of polymeric compositions containing active acid hydrogen atoms.
摘要:
Glass ionomer cements for dental restoratives with improved physical properties are produced by the present invention. Acryloyl and methacryloyl derivatives of amino acids are used in the invention to copolymerize with acrylic acid, methacrylic acid or various acrylic acid-comonomer mixtures to produce water soluble polycarboxylic acids.
摘要:
A process for preparing a polymeric composition comprising reacting a mixture of at least one phenolic compound and at least one oxazoline compound in the presence of a catalytic amount of at least one ammonium salt and a tetracarbyl phosphonium salt, and optionally also in the presence of an alkyl halide is described.
摘要:
A polymerizable thermosetting composition which is a flowable liquid at moderate temperatures which comprises a mixture of:(A) from about 75% to about 95% by weight of a mixture of:(1) from about 80% to about 20% by weight of a bisoxazoline and(2) from about 20% to about 80% by weight of a polyphenolic compound and(B) from about 5% to about 25% by weight of at least one member selected from the group consisting of a monooxazoline and a monooxazine,a method for forming thermoset products therefrom and the novel thermoset products resulting from said method are described.
摘要:
Compositions having melting points below 100.degree. C. which are useful in the formation of resins by reaction with polyphenolic compounds consisting of a mixture of more than two compounds having the formula ##STR1## wherein A represents a cyclic or acyclic aliphatic or substituted cyclic or acyclic aliphatic moiety having from 1 to 20 carbon atoms or an aromatic mono- or multi-nuclear or aliphatic substituted aryl residue having from 6 to 20 carbon atoms,R independently represents H, CH.sub.3, CH.sub.2 CH.sub.3 or C.sub.6 H.sub.5,R.sup.1 independently represents H or CH.sub.3,R.sup.2 independently represents H or CH.sub.3, andx represents an integer from 0 to 2as described.
摘要:
A copolymer formed by reacting maleic anhydride or a maleimide or a mixture of these with an allylphenol, a methallylphenol, or substituted allyl or methallylphenol. The anhydride polymers are characterized as having a 1:1 molar ratio of maleic anhydride to phenol or substituted phenol. The maleic anhydride copolymers are water soluble materials, useful as epoxy resin modifiers and curatives, as ion exchange resins or membranes, laminates, and detergent additives and builders. The maleimide containing copolymers are also useful as epoxy resin modifiers and useful in the production of laminates, composites and coatings.
摘要:
Pressure-sensitive adhesives having improved cohesive strength are formed by reacting an acrylic interpolymer with a metal alkoxide or chelated metal alkoxide such as a chelated ester of orthotitanic acid. The novel feature of this invention comprises the use of an interpolymer containing a vinyl monomer which contains both a carboxylic acid and a carbamate functional group.