Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of a compound of structure I ##STR1## wherein R is hydrogen, a C.sub.1 -C.sub.4 alkyl, C.sub.6 -C.sub.8 aryl, or C.sub.7 -C.sub.

Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition consisting essentially of a pyrrolizidine of the formula: ##STR1## where R.sub.1 and R.sub.2 independently are --H, --OH, ##STR2## or --NR.sub.4 R.sub.5, R.sub.3 is hydrogen, a C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl, or C.sub.7 -C.sub.11 arylalkyl group, andR.sub.4 and R.sub.5 independently represent H, a C.sub.1 -C.sub.12 alkyl group, C.sub.5 -C.sub.10 cycloalkyl, C.sub.6 -C.sub.10 aryl, or C.sub.7 -C.sub.11 arylalkyl group, provided that at least R.sub.1 or R.sub.2 is not hydrogen.

Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, cell stabilizer and a catalyst composition consisting essentially of at least one of the permethylated mono- and dialkylene oxide adducts of tris(2-aminoethyl)amine of structures I, II and III, or any combination thereof ##STR1## wherein R is hydrogen, a C.sub.1 -C.sub.4 alkyl, C.sub.6 -C.sub.8 aryl, or C.sub.7 -C.sub.9 aralkyl group.

Abstract: This invention relates to o-tolidines which have a tert-butyl substituent ortho to an amine group. These compositions are represented by the formula: ##STR1## where R.sub.1 =i-propyl, or t-butyl, and where R.sub.2 =hydrogen, i-propyl, or t-butyl.The compositions are useful in the preparation of polyepoxide resins as well as polyurethanes, polyamides and polyimides.

Abstract: N,N'-Di-(branched alkyl)-alkylenediamine-bis-p-aminobenzamides are useful as chain extenders in the manufacture of polyurethane-urea elastomers. These compositions have remarkably uniform reactivities but can be varied structurally to achieve a range of processibility characteristics by altering the melting points of the chain extenders. The preferred compounds melt in a range of 50.degree. to 175.degree. C. while exhibiting t.sub.5000 reactivities of about four minutes. The combination of processing characteristics, reactivities and physical properties of the elastomer products offers advantages not available in commonly used diamine chain extenders of the prior art.

Abstract: A method for preparing a polyurethane foam which comprises reacting an organic polyisocyanate and a polyol in the presence of a blowing agent, a cell stabilizer and a catalyst composition consisting essentially of at least one compound of the following formula; ##STR1## where R is hydrogen, c.sub.1 -c.sub.8 alkyl, c.sub.6 -c.sub.10 aryl or c.sub.7 -c.sub.10 aralkyl, and n is 0-3. The preferred catalyst consists essentially of of the compound when n is 0, namely 3-quinuclidinol.