Starch-based composition for preparing an environment degradable .alpha.-olefinic polymer molding material
AssigneeChi May Co., Ltd.
InventorYuan Qing Zhang
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Abstract
A starch-based composition for preparing an environment degradable .alpha.-olefinic polymer molding material, which includes 95-99 wt % of starch, 0.2-0.8 wt % of a titanate coupling agent having the following formula (I), 0-2 wt % of paraffin and 0-2 wt % of fatty acid: ##STR1## wherein R.sub.1 and R.sub.2 are hydrogen, or R.sub.1 and R.sub.2 together are .dbd.O.
Claims12
A starch-based composition for preparing an environment degradable .alpha.-olefinic polymer molding material, which comprises 95-99 wt % of starch, 0.2-0.8 wt % of a titanate coupling agent having the following formula (I), 0-2 wt % of paraffin and 0-2 wt % of fatty acid:
- ##STR3## wherein R.sub.1 and R.sub.2 are hydrogen, or R.sub.1 and R.sub.2 together are .dbd.O.
A starch-based master batch for preparing an environment degradable .alpha.-olefinic polymer molding material, which comprises 50-80 wt % of the starch-based composition according to claim 1, 18-49.8 wt % of .alpha.-olefinic polymer, 0.1-1.0 wt % of a photosensitizer, and 0.1-1.0 wt % of a photosensitizer promoter.
An environment degradable .alpha.-olefinic polymer molding material comprising 15-49 wt % of the starch-based composition according to claim 1, 50.8-84.8 wt % of .alpha.-olefinic polymer, 0.1-1.0 wt % of a photosensitizer, and 0.1-1.0 wt % of a photosensitizer promoter.
Dependencies are inferred from the claim text.