Patent · US Active

One-step formation of an integrated composite structure comprising cured mortar layers and a polyurethane layer by 3D printing

US12397494B2 · kind B2 · utility

0Cited by

2References

22Claims

0Family size

Assignee

SIKA TECHNOLOGY AG · CH

Inventors

Hang Xu · Tianjin, CN
Shengzhong Zhou · Shanghai, CN
Bang Wei Xi · Shanghai, CN
Xi Liu · Longbeilingcun, CN
Li Xia Wang · Aurora, US
He Zhao · Jilin, CN
Bernhard FEICHTENSCHLAGER · Traunstein, DE
Stefan HIRSEMANN · Shanghai, CN

Key dates

Filing date	Jun 10, 2020
Grant date	Aug 26, 2025
Priority date	—
Expiry date	Sep 22, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/00612
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The present invention relates to a process of fabricating a multi-layer composite structure by 3D printing, said composite structure comprises at least one cured mortar layer formed by curing of a mortar composition, and at least one polyurethane layer formed by polymerization of a first polyurethane forming composition, wherein said mortar composition and said first polyurethane forming composition are dispensed individually and simultaneously via adjacent printing nozzles. The mortar composition is optionally modified by a second polyurethane forming composition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.