Regenerated foamed particles, regenerated foamed and molded body, and manufacturing method therefor
AssigneeSunko Ink Co., Ltd.
InventorsYa-Chi Wang, Ting--Kai Huang
Life of this patent
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Abstract
Regenerated foamed particles, and a regenerated foamed and molded body made from same. The regenerated foamed particles are made by melting and foaming regenerated TPU particles. The regenerated TPU particles are formed by melting and pelletizing a recycled composition which contains 100 parts by weight of scraps of a waste ETPU molded body and 0 to 20 parts by weight of a TPU prepolymer. The regenerated TPU particles have a viscosity of 1,000 to 9,000 poises measured at 170° C. according to the JISK7311 method.
Claims11
Regenerated foamed particles, wherein the regenerated foamed particles are made by melting and foaming regenerated TPU particles, and the regenerated TPU particles are formed by melting and pelletizing a recycled composition, and the recycled composition comprises 100 parts by weight of scraps of a waste ETPU molded body and 0 to 20 parts by weight of a TPU prepolymer, the regenerated TPU particles have a viscosity of 1,000 poise to 9,000 poise measured at 170° C. according to JISK 7311 method, wherein the TPU prepolymer is an oligomer produced by reaction of a polyol monomer and a diisocyanate monomer, and the TPU prepolymer has an isocyanate (RNCO) functional group at an end of a Polymer chain and R is an alkane, the TPU prepolymer has a NCO content of 3 to 13 weight percent based on the total weight of the TPU prepolymer as measured according to ASTM D2572.
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Dependencies are inferred from the claim text.