公开(公告)号：US11806892B2

公开(公告)日：2023-11-07

申请号：US16612847

申请日：2017-06-20

Applicant: Wanhua Chemical Group Co., Ltd.

Inventor： Song Tu ,  Wangshun Qi ,  Houyi Li ,  Weihua Sun ,  Zijun Zhang ,  Bing Lv

IPC: C08G18/32 ,  B27N3/00 ,  C08G18/34 ,  C08G18/42 ,  C08G18/67 ,  C08G18/73 ,  C08G18/75 ,  C08L75/06 ,  C09J175/06

CPC classification number: B27N3/002 ,  C08G18/3206 ,  C08G18/348 ,  C08G18/4277 ,  C08G18/672 ,  C08G18/73 ,  C08G18/755 ,  C08G18/758 ,  C08L75/06 ,  C09J175/06 ,  C08L2201/54

Abstract: Disclosed a no-added formaldehyde composite wood product binder, a no-added formaldehyde composite wood product manufactured by same, and a preparation method for the composite wood product. The no-added formaldehyde composite wood product binder comprises an agent A and an agent B. The agent A is an isocyanate-based binder, and the agent B is an aqueous dispersion of polyester based aliphatic polyurethane and/or a modified polyester-based aliphatic polyurethane. The no-added formaldehyde composite wood product is formed under hot-pressing after a wooden and/or straw material is mixed with the no-added formaldehyde composite wood product binder. The composite wood product manufactured by the no-added formaldehyde composite wood product binder has excellent water-proof and mechanical properties and a good saw cutting performance, and the amount of isocyanate used is also reduced, thereby reducing costs.