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Machine translation
1. (WO1981003027) BLENDS OF THERMOPLASTIC POLYURETHANE ELASTOMERS AND ACETAL RESINS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/003027    International Application No.:    PCT/US1980/000442
Publication Date: 29.10.1981 International Filing Date: 18.04.1980
IPC:
C08L 75/04 (2006.01)
Applicants:
Inventors:
Priority Data:
US80/00442 18.04.1980 WO
Title (EN) BLENDS OF THERMOPLASTIC POLYURETHANE ELASTOMERS AND ACETAL RESINS
(FR) MELANGES D"ELASTOMERES DE POLYURETHANE THERMOPLASTIQUES ET DE RESINES ACETAL
Abstract: front page image
(EN)Blends of thermoplastic polyurethane elastomers and acetal resins which are useful for blow-molding applications. The polyurethanes are reaction products of polyester glycols, polyether glycols, or polythioetherglycols with aromatic polyisocyanate. Low molecular weight aliphatic diols are optionally present. The polyisocyanate is present in stoichiometric proportions. The acetal resin may be polyoxymethylene or an acetal of the formula (FORMULA) wherein m/m + n = 0.05-0.2. The composition contains 80-98 weight percent polyurethane and 2-20 weight percent polyacetal. In an example 90 parts polyurethane and 10 parts polyacetal were combined. The polyurethane was prepared from 333 parts hydroxy terminated polythioether based on thiodiethanol, 60 parts 1,4-butane-diol and 212 parts methylene bis (4-phenylisocyanate). The polyacetal was prepared by reacting ethylene oxide and formaldehyde m/m + n = 0.1.
(FR)Melanges d"elastomeres de polyurethanes thermoplastiques et de resines acetal utiles aux applications de moulage par soufflage. Les polyurethanes sont des produits de reaction glycols de polyesters, glycols de polyethers, ou de polythioetherglycols avec un polyisocyanate aromatique. Des diols aliphatiques de faible poids moleculaire sont eventuellement presents. Le polyisocyanate est present en proportions stoichiometriques. La resine acetal peut etre un polyoxymethylene ou un acetal de formule (FORMULE) ou n/m + n = 0,05-0, 2. La composition contient 80-98% en poids de polyurethane et 2-20% en poids de polyacetal. Dans un exemple, 90 parties de polyurethane et 10 parties de polyacetal ont ete combinees. Le polyurethane a ete prepare a partir de 333 parties de polythioether a terminaison hydroxy basees sur le thiodiethanol, 60 parties de 1,4-butanediol et 212 parties de methylene bis (4-phenylisocyanate). Le polyacetal a ete prepare en faisant reagir l"oxyde d"ethylene et du formaldehyde, ou n/m + n = 0,1.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)