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公开(公告)号：US20150141609A1
公开(公告)日：2015-05-21
申请号：US14396232
申请日：2013-06-25
Applicant: DOW GLOBAL TECHNOLOGIES LLC
Inventor： Giuseppe Lista , Luciano Zanacchi
CPC classification number: C08G18/3221 , C08G18/10 , C08G18/4238 , C08G18/664 , C08G18/72
Abstract: Embodiments of the invention encompass polyurethane elastomers which are a reaction product of a reaction mixture that includes a) at least one polyester made using a dicarboxylic acid having a carbon chain of from 9 to 20; b) at least one chain extender; and c) at least one polyisocyanate. At least 20% of the total carbon content of the polyurethane elastomer is from renewable carbon.
Abstract translation: 本发明的实施方案包括作为反应混合物的反应产物的聚氨酯弹性体，其包括a）使用碳链为9至20的二羧酸制备的至少一种聚酯; b）至少一种扩链剂; 和c）至少一种多异氰酸酯。 聚氨酯弹性体的总碳含量的至少20％来自可再生碳。
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公开(公告)号：US11332569B2
公开(公告)日：2022-05-17
申请号：US16489478
申请日：2018-03-02
Inventor： Silvia Scussolin , Luciano Zanacchi , Alessio Sabadini
Abstract: The present disclosure provides for a polyurethane elastomer foam formed by reacting a mixture that includes 60 to 50 weight percent (wt. %) of a polyol formulation and 40 to 50 wt. % isocyanate pre-polymer (wt. % based on the total weight of the mixture). The polyol formulation includes 85 to 92 wt. % of a polytetramethylene ether glycol (PTMEG) with a weight average molecular weight of 1900 to 2100 and a hydroxyl number of about 53 to about 60; 4 to 10 wt. % of monoethylene glycol; a blowing agent; a catalyst; and a surfactant (wt. % values for the polyol formulation based on the total weight of the polyol formulation). The isocyanate pre-polymer includes 55 to 70 wt. % of a isocyanate blend having at least 90 wt. % of 4,4′-diphenylmethane diisocyanate; and 30 to 45 wt. % of the PTMEG, where the isocyanate pre-polymer has an isocyanate content of 16 to 21 wt. % based on the total weight of the isocyanate pre-polymer, and the polyurethane elastomer foam has a ball rebound of at least 50% measured according to ASTM D3574 on a 10 mm thickness test plate.
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公开(公告)号：US20200071448A1
公开(公告)日：2020-03-05
申请号：US16489478
申请日：2018-03-02
Inventor： Silvia Scussolin , Luciano Zanacchi , Alessio Sabadini
Abstract: The present disclosure provides for a polyurethane elastomer foam formed by reacting a mixture that includes 60 to 50 weight percent (wt. %) of a polyol formulation and 40 to 50 wt. % isocyanate pre-polymer (wt. % based on the total weight of the mixture). The polyol formulation includes 85 to 92 wt. % of a polytetramethylene ether glycol (PTMEG) with a weight average molecular weight of 1900 to 2100 and a hydroxyl number of about 53 to about 60; 4 to 10 wt. % of monoethylene glycol; a blowing agent; a catalyst; and a surfactant (wt. % values for the polyol formulation based on the total weight of the polyol formulation). The isocyanate pre-polymer includes 55 to 70 wt. % of a isocyanate blend having at least 90 wt. % of 4,4′-diphenylmethane diisocyanate; and 30 to 45 wt. % of the PTMEG, where the isocyanate pre-polymer has an isocyanate content of 16 to 21 wt. % based on the total weight of the isocyanate pre-polymer, and the polyurethane elastomer foam has a ball rebound of at least 50% measured according to ASTM D3574 on a 10 mm thickness test plate.
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