公开(公告)号：US20240239946A1

公开(公告)日：2024-07-18

申请号：US18561725

申请日：2022-05-16

Applicant: Stratasys, Inc

Inventor： Anne FISCHER ,  Thomas BÜSGEN ,  Dirk ACHTEN

IPC: C08G18/48 ,  C08G18/24 ,  C08G18/42 ,  C09D7/40 ,  C09D175/14

CPC classification number: C08G18/4845 ,  C08G18/244 ,  C08G18/4252 ,  C09D7/40 ,  C09D175/14 ,  C08G2150/00

Abstract: A resin comprises: A) a (meth)acrylate-functional compound; B) a polyisocyanate; C) a radical starter and D) a catalyst. The compound A) has an equivalent molecular weight with respect to (meth)acrylate C═C double bonds of ≥500 g/mol and an average number of (meth)acrylate groups per molecule of ≥1.8 to ≤2.2, the polyisocyanate B) has an average NCO group functionality of ≥2 and an equivalent molecular weight with respect to NCO groups of ≤300 g/mol, the catalyst D) is an isocyanate trimerization catalyst and the resin is free from NCO-reactive compounds or, if NCO-reactive compounds are present in the resin, the molar ratio of NCO groups to NCO-reactive groups is ≥5:1.
Such resins may form hybrid polymer networks.

公开(公告)号：US20250002627A1

公开(公告)日：2025-01-02

申请号：US18576829

申请日：2022-06-30

Applicant: Stratasys, Inc.

Inventor： Anne FISCHER ,  Thomas BUESGEN ,  Dirk ACHTEN ,  Jan SUETTERLIN

IPC: C08F283/00 ,  B29C64/124 ,  B29C71/02 ,  B29K33/00 ,  B29K75/00 ,  B33Y10/00 ,  B33Y40/20 ,  C08F2/50 ,  C08G18/09 ,  C08G18/79

Abstract: A resin comprises: A) a multifunctional (meth)acrylate; B) an NCO-functional polyurethane; C) a radical starter and D) a catalyst. The multifunctional (meth)acrylate A) has a viscosity at 23° C. as determined according to DIN EN ISO 2884-1 of ≤10000 mPa·s, the NCO-functional polyurethane B) has an average NCO group functionality of ≥2 and an equivalent molecular weight with respect to NCO groups of >300 g/mol, the catalyst D) is an isocyanate trimerization catalyst and the resin is free from NCO-reactive compounds or, if NCO-reactive compounds are present in the resin, the molar ratio of NCO groups to NCO-reactive groups is ≥5:1.