Abstract:
Compounds of the structure WHEREIN Ar is a mono- or polynuclear aromatic radical, and R and R'' are C1 to C20 hydrocarbon radicals. These compounds are useful as initiators or activators in the anionic polymerization of lactam monomers.
Abstract:
Certain N-substituted nylon-1 compounds are utilized as nontoxic polymerization initiators or activators with alkaline catalyst in the anionic polymerization of lactam monomer so as to provide for a rapid polymerization process wherein polymerization conditions are more readily controlled due to the gradual development of exotherms.
WHEREIN Ar and Ar'' are mono- or polynuclear aromatic radicals, and R and R'' are C1 to C20 hydrocarbon radicals These compounds are useful as initiators or activators in the anionic polymerization of lactam monomers.
Abstract:
Reversibly cross-linked, thermoplastic, normally solid polymer salt compositions have been prepared by copolymerizing a prepolymer of a carboxyl containing polyolefin, having 2 to 50 mole percent carboxylic acid groups, and about 10 to 100 mole percent of its carboxyl groups neutralized with an amino vinyl monomer such as an alkylaminoalkyl acrylate, an alkylaminoalkyl methacrylate, or an amino substituted styrene with a vinyl monomer such as an alkyl acrylate, an alkyl methacrylate, acrylamide, methacrylamide, styrene, alkyl substituted styrenes, vinyl chloride, vinyl esters containing from three to 20 carbon atoms or vinyl alkyl ethers containing from three to 20 carbon atoms. These polymer salt compositions are particularly useful in that they exhibit a high degree of adhesion to plasticized vinyl chloride resins, unlike most other commonly known adhesives, as well as other substrates.
Abstract:
POLYTHIOLACTONES ARE UTILIZED AS POLYMERIZATION INITIATORS OR ACTIVATORS WITH ALKALINE CATALYSTS IN THE ANIONIC POLYMERIZATION OF LACTAM MONOMERS SO AS TO PROVIDE FOR A RAPID POLYMERIZATION PROCESS. THE POLYMERS THUS OBTAINED HAVE GOOD PHYSICAL PROPERTIES AND GOOD COLOR.
Abstract:
SILANE CONTAINING ISOCYANATE PREPOLYMERS Isocyanate containing prepolymers partially end-capped with organo-functional silanes have been prepared which contain diols, polyols and diisocyanates. These prepolymers are useful as precursors of urethane polymers and can be made as moisture curable one component urethane or two package urethanes.
Abstract:
1 Liquid Thermosetting Compositions Containing Hemiformals of Phenol There are described liquid compositions of a hemiformal of phenol and/or a hemiformal of a methylolated phenol with miscible polymers such as phenol-formaldehyde resoles, phenol-formaldehyde, novolacs, aromatic polyesters, unsaturated polyesters, poly(aryl-ethers), aromatic polycarbonates, urea-formaldehyde resins, or melamine-formaldehyde resins. The compositions are useful for forming thermoset plastic materials.
Abstract:
This invention is directed to having the following formulas: wherein b is 1 to about 5, c is 1 to about 3, d is 0 to about 2, the sum of c and d does not exceed 3 and is equal to or greater than 1 and n has a value equal to or greater than 1. These materials can be used to manufacture phenolic resins and are adaptable to liquid injection molding processes.