The B. F. Goodrich Company

Carl J Long, Ii

William F Masler, Iii

Zahid Amjad

Gary L Julian

Julius Farkas

Daniel James Adams

Solomon Lemma

William H Wingo

William R Wilbur

William Robert Wilber

A polymeric thickener, emulsifier or suspension aid having improved wettability which is an interpolymer of at least one olefinically unsaturated carboxylic acid containing at least one activated carbon-to-carbon olefinic double bond and at least one carboxyl group, in an amount of more than 15% by weight based upon the weight of the interpolymer, and at least one steric stabilizer surfactant having at least one hydrophilic moiety and at least one hydrophobic moiety and a linear block or a random comb configuration, or mixtures thereof, where the interpolymer has admixed therewith a wetting additive such as a low surface tension surfactant, a glycol, a polyhydric alcohol or mixtures thereof, and a process for dispersing the interpolymer by adding a low surface tension surfactant to the water into which the interpolymer is being dispersed.

Polycarboxylic acid thickeners, emulsifiers, and suspending aids having

An interpolymer of at least one olefinically unsaturated carboxylic acid containing at least one activated carbon-to-carbon olefinic double bond and at least one carboxyl group, in an amount of more than 15% by weight based upon the weight of the interpolymer, and at least one steric stabilizer surfactant having at least one hydrophilic moiety and at least one hydrophobic moiety and a linear block or a random comb configuration, or mixtures thereof, made by polymerizing olefinically unsaturated carboxylic acid monomers in an organic media, in the presence of free a radical forming catalyst, and the steric stabilizer.

Easy to disperse polycarboxylic acid thickeners

Reactive multifunctional imide monomers have been discovered from which radiation curable oligomers and polymers may be derived. The reactive imide monomers have at least one functional group which is polymerizable under free radical or ionic polymerization conditions with other similar functional groups. However, the same functional group and reaction product derived therefrom is substantially not subject to cleavage by oxidation or hydrolysis. The reactive imide monomer also contains at least one other functional group which remains intact under the above-described polymerization conditions to form a part of a side chain of the resultant polymer and will cross-link or cure by 2+2 cyclo-addition with other like functional groups upon irradiation.

Reactive imide monomers and radiation curable polymers derived therefrom

The present invention is directed to a reactive diluent comprising a backbone portion and a pendant group portion. The backbone portion comprises at least two polymerizable sites, and the pendant group portion comprising a functional group having the following formula: ##STR1## wherein Z is an ethylenically unsaturated hydrocarbyl or substituted hydrocarbyl group containing from 2 to about 12 carbon atoms and wherein said pendant group is capable of a (2+2) cyclo-addition with another like pendant group of the above formula. The chain extending reaction site is preferably used in a polymerization reaction to provide a polymeric material, and the cross-linking reactive site is preferably used to create cross-linking as needed or desired.

Multifunctional reactive polymeric diluent and method relating thereto

Maleimido group containing monomers

Radiation curable linear thermoplastic polyurethanes having imido pendent groups of the formula (A) ##STR1## wherein Z is an unsaturated C.sub.2-12 hydrocarbyl or substituted hydrocarbyl group (preferably H.sub.3 CC.dbd.CCH.sub.3) capable of undergoing photocrosslinking with another like group Z, are prepared by reaction of (a) a macroglycol of molecular weight 500-7,000, (b) one or more glycol chain extenders each having a molecular weight less than 500, which may include one or more low molecular weight aliphatic glycols (e.g., a C.sub.2-12 alkylene glycol or mixture thereof), and (c) an organic diisocyanate. Either a macroglycol or a chain extender must include a radiation sensitive pendent imido group of the above formula (A). The thermoplastic polyurethanes herein have hard and soft segments. Pendent groups (A) are present in the hard segments when a chain extender containing pendent group (A) is used, and are present in the soft segment when a macroglycol having pendent group (A) is used. The thermoplastic polyurethanes are useful for various purposes including coatings and magnetic recording media. Radiation curing gives a thermoset polyurethane having high hardness and good solvent resistance.

Growing community of inventors

Elyria, OH, United States of America

Carl J Long, Ii