公开(公告)号：US11807706B2

公开(公告)日：2023-11-07

申请号：US17778413

申请日：2021-01-08

Applicant: Miracll Chemicals Co., Ltd.

Inventor： Hongwei Song ,  Guangfu Wang ,  Chongchong Yang ,  Sheng Zhang ,  Renhong Wang

IPC: C08G18/08 ,  C08G18/12 ,  C08G18/24 ,  C08G18/32 ,  C08G18/48 ,  C08G18/66 ,  C08G18/73 ,  C08J9/12 ,  C08J9/14 ,  C08J9/18 ,  C08J9/228 ,  C08G101/00

CPC classification number: C08G18/14 ,  C08G18/12 ,  C08G18/244 ,  C08G18/3206 ,  C08G18/4854 ,  C08G18/6674 ,  C08G18/73 ,  C08J9/122 ,  C08J9/141 ,  C08J9/18 ,  C08J9/228 ,  C08G2101/00 ,  C08G2110/0058 ,  C08G2380/00 ,  C08G2410/00 ,  C08J2201/03 ,  C08J2201/032 ,  C08J2203/06 ,  C08J2203/14 ,  C08J2375/08

Abstract: A thermoplastic polyurethane (TPU) foam product with high flatness, and a preparation method and a use thereof are provided. The TPU foam product is prepared by processing aliphatic thermoplastic polyurethane (ATPU) beads with a melting range of 20° C. to 50° C. and a melting point of 90° C. to 160° C. by a physical gas foaming process to obtain foamed ATPU beads and heating the foamed ATPU beads with a heat source to make the foamed ATPU beads fused. The TPU foam product with high flatness has a density of 0.08 g/cm3 to 0.8 g/cm3 and a flatness value of less than 2 mm, and the flatness value is determined by a fixed-length ruler. The TPU foam product not only has high flatness such that diversified designs are allowed for a surface of the product, but also has high resilience.

公开(公告)号：US11643498B2

公开(公告)日：2023-05-09

申请号：US16483670

申请日：2017-02-24

Applicant: MIRACLL CHEMICALS CO., LTD.

Inventor： Heilong Wang ,  Hongwei Song ,  Defu Liu ,  Sheng Zhang ,  Renhong Wang

IPC: C08G18/61 ,  B29B9/06 ,  C08G18/24 ,  C08G18/32 ,  C08G18/40 ,  C08G18/42 ,  C08G18/48 ,  C08G18/66 ,  C08G18/75 ,  C08G18/76 ,  B29K75/00 ,  B29K83/00

CPC classification number: C08G18/61 ,  B29B9/065 ,  C08G18/242 ,  C08G18/3206 ,  C08G18/3212 ,  C08G18/4009 ,  C08G18/4238 ,  C08G18/4833 ,  C08G18/4854 ,  C08G18/664 ,  C08G18/6674 ,  C08G18/758 ,  C08G18/7621 ,  C08G18/7671 ,  B29K2075/00 ,  B29K2083/00

Abstract: The present invention relates to a thermoplastic silicone-polyurethane elastomer and a method for preparing the same. The elastomer is prepared from raw materials comprising: 25-80 parts of a macromolecular polyol, 0-60 parts of a silicone oil or a liquid silicone rubber, 10-50 parts of a diisocyanate, 3-20 parts of a small molecular diol as a chain extender, and 0.1-3 parts of an auxiliary agent. The macromolecular polyol is selected from a silicon-free polyol having a molecular weight of between 1,000 and 4,000 g/mol and a polyol modified by silicone through copolymerization or grafting. The small molecular diol is a small molecular diol comprising 10 or less carbon atoms. The thermoplastic silicone-polyurethane elastomer of the present invention has the following excellent performance parameters: a hardness of Shore A40-D80; a tensile strength ≥5 MPa; smooth hand feeling; resistance to dirt such as dust; resistance to liquid permeation; no irritation to skin; good encapsulation effect on PC, ABS, TPU and the like; and a 180° peel strength >25 N/25 mm.

公开(公告)号：US11274203B2

公开(公告)日：2022-03-15

申请号：US16477894

申请日：2017-02-24

Applicant: Miracll Chemicals Co., Ltd.

Inventor： Zhensheng Zhan ,  Hongwei Song ,  Qingbo Zhao ,  Sheng Zhang ,  Guanglei Ren

IPC: C08L75/06 ,  B01J2/20

Abstract: A process for preparing a TPU alloy material through in-situ compatibilization includes: 1) adding a premixed TPU raw material to a feeding port of a twin-screw extruder; injecting a mixture of an alloy component and a dual-active substance into the twin-screw extruder through a lateral feeding port; adding an auxiliary reagent to the TPU raw material or the mixture of the alloy component and the dual-active substance, wherein the alloy component is a polyolefin or a thermoplastic polymer material having reactivity, wherein the dual-active substance is a substance containing a group reactive with the TPU raw material and a group reactive with the alloy component, and the auxiliary reagent includes an initiator; 2) controlling a temperature of a reaction zone of the twin-screw extruder at 50° C. to 250° C., and granulating an extruded material by underwater cutting; and 3) drying the granulated product to obtain the TPU alloy material.

公开(公告)号：US11530310B2

公开(公告)日：2022-12-20

申请号：US16478290

申请日：2017-02-24

Applicant: MIRACLL CHEMICALS CO., LTD.

Inventor： Guangfu Wang ,  Hongwei Song ,  Chongchong Yang ,  Guanglei Ren ,  Renhong Wang

IPC: C08J9/236 ,  B29C44/04 ,  B29C44/34 ,  B29C44/60 ,  C08J9/224 ,  C08L75/04 ,  B29K75/00 ,  B29K105/04

Abstract: The present invention relates to a method for preparing a foamed thermoplastic polyurethane elastomer product, comprising the steps of: 1) coating a binder: coating the binder on the surfaces of expandable thermoplastic polyurethane elastomer particles; 2) curing and molding: adding the product obtained from step 1) to a mold and then placing it in a vulcanizing machine for curing and molding; and 3) cooling and setting: cooling the mold after the molding in step 2) to obtain the product of the present invention. By means of pre-coating the binder on the surfaces of expanded thermoplastic polyurethane elastomer particles according to the present invention, the weight of the binder can be reduced, and the properties of the expanded thermoplastic polyurethane elastomer particles can be utilized to the maximum extent.