Polyurethane and polyurethane-urea elastomers from...

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C - Chemistry, Metallurgy

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C08G 18/48 (2006.01) C07C 269/02 (2006.01) C07C 271/08 (2006.01) C08G 18/08 (2006.01) C08G 18/10 (2006.01) C08G 18/32 (2006.01) C08G 65/34 (2006.01)

Patent

CA 2495585

Polyurethanes or polyurethane-ureas prepared from: (a) polytrimethylene ether glycol having a number average molecular weight in the range of about 1,000 to about 4,000 and unsaturated end groups in the range of about 0.003 to about 0.015 meq/g; (b) diisocyanate; and (c) diol or diamine chain extender; and their manufacture, intermediates and use.

Polyuréthannes ou polyuréthanne-urées préparés à partir : (a) d'un polytriméthylène éther glycol possédant un poids moléculaire moyen en nombre situé entre 1 000 et 4 000 et des groupes terminaux insaturés situés entre 0,003 et 0,015 meq/g; (b) de diisocyanate; et (c) d'un allongeur de chaîne diol ou diamine, ainsi que leur préparation, leurs intermédiaires et leur utilisation.

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