Stabilized polyurethane elastomer composition

Abstract

Abstract WHEREIN R3 AND R4 HAVE THE SAME MEANING AS R1 AND R2 BUT MUST NOT BE HYDROGEN, FURTHER R1 AND R2 CAN COLLECTIVELY FORM 5- TO 6-MEMBERED RING WHEREIN SAID RING MAY CONTAIN S, O OR N, ALKYL OR HALOGEN SUBSTITUENT, AND ONE OF R1 AND R2 CAN BE A HYDROGEN ATOM; AT LEAST 5% OF THE Y GROUPS BEING II. -N(-R3)-R4 WHEREIN R1 AND R2 ARE INDIVIDUALLY ALKYL GROUP HAVING 1-20 CARBON ATOMS; SUBSTITUTED ALKYL GROUP HAVING 1-20 TOTAL CARBON ATOMS WHEREIN SUBSTITUENT MAY CONTAIN O, N OR S ATOM; CYCLOALKYL HAVING 3-20 TOTAL CARBON ATOMS; SUBSTITUTED CYCLOALKYL HAVING 3-20 TOTAL CARBON ATOMS WHEREIN SUBSTITUENT MAY CONTAIN O, N OR S ATOM; AROMATIC GROUP OF 1 TO 2 RINGS, HAVING 6-20 TOTAL CARBON ATOMS WHEREIN SAID RING OR RINGS MAY HAVE 1 TO 3 SUBSTITUENTS SELECTED FROM THE GROUP CONSISTING OF HALO, ALKYL AND HYDROXY GROUPS; 5- OR 6-MEMBERED HETEROCYCLIC RADICAL WHEREIN AND RING MAY HAVE SUBSTITUENT SELECTED FROM THE GROUP CONSISTING OF HALO, PHENOXY, ALKYL-SUBSTITUTED PHENOXY, HYDROXY-SUBSTITUTED PHENOXY, PHENYLTHIO, ALKYL-SUBSTITUTED PHENYLTHIO, HYDROXY-SUBSTITUTED PHENYLTHIO, ALKOXY AND ALKYTHIO OR OXIRANYL (I) OR -CH(-OH)-CH2-N(-R1)-R2 (II) WHEREIN R IS HYDROGEN OR LOWER ALKYL AND Y IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF: CH2=C(-R)-COO-CH2-Y THE INVENTION PROVIDES A POLYMERIC COMPOSITION HAVING AN INTRINSIC VISCOSITY OF 0.05-1.2, WHICH GIVES A STABILIZED POLYURETHANE ELASTOMER COMPOSITION HAVING AN EXCELLENT WHITENESS-RETAINABILITY BY MIXING WITH OR COATING UPON A POLYURETHANE ELASTOMER PREPARED FROM A SUBSTANTIALLY LINEAR POLYMER HAVING TERMINAL HYDROXY GROUPS AND A MOLECULAR WEIGHT OF 600 TO 5000, AN ORGANIC DIISOCYANATE AND A BIFUNCTIONAL CHAIN EXTENDER HAVING ACTIVE HYDROGEN ATOMS, SAID POLYMERIC COMPOSITION COMPRISES A VINYL POLYMER OF A MONOMER OF THE FORMULA:

Inventors

• 👤 K Ichikawa
• 👤 K Kondo
• 👤 Y Nakahara

Bibliographic Details