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US 11,633,880 B2Granted
Cleaning agent composition and molding raw material
AssigneeSeiki Kabushiki Kaisha
InventorsTsutomu Saito, Koichi Uehara, Hajime Sakano
Life of this patent
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Abstract
A cleaning agent composition contains 100 parts by weight of polyethylene oxide; 25 parts by weight to 90 parts by weight of at least one type of fatty acid ester that is selected from glycerin fatty acid ester, polyglycerin fatty acid ester, or sorbitan fatty acid ester; and 15 parts by weight to 45 parts by weight of a metal salt of a fatty acid and/or a hydroxyfatty acid. The cleaning agent composition is used for cleaning a flow channel for resin in a hot runner type mold.
Claims16
A cleaning agent composition, comprising:
- 100 parts by weight of polyethylene oxide having a weight-average molecular weight of between 1,600,000 and 10 million;
- 25 parts by weight to 90 parts by weight of a fatty acid ester that is selected from the group consisting of a glycerin fatty acid ester, a polyglycerin fatty acid ester, a sorbitan fatty acid ester, and combinations thereof;
- and
- 15 parts by weight to 45 parts by weight of a metal salt of a fatty acid and/or a hydroxyfatty acid,
- wherein the cleaning agent composition is used for cleaning a flow channel for resin in a hot runner type mold.
2 more elements
A cleaning agent composition, comprising:
- 100 parts by weight of polyethylene oxide having a weight-average molecular weight of between 50,000 and 10 million;
- 15 parts by weight to 30 parts by weight of a glycerin fatty acid ester;
- at least one of:
- (i) 8 parts by weight to 40 parts by weight of a sorbitan fatty acid ester, and (ii) 8 parts by weight to 25 parts by weight of a polyglycerin fatty acid ester;
- 15 parts by weight to 45 parts by weight of a metal salt of a fatty acid and/or a hydroxyfatty acid,
- wherein the cleaning agent composition is used for cleaning a flow channel for resin in a hot runner type mold.
3 more elements
Dependencies are inferred from the claim text.