Invention Publication
- Patent Title: ACOUSTIC PRODUCTS
-
Application No.: US18259813Application Date: 2021-10-01
-
Publication No.: US20240060293A1Publication Date: 2024-02-22
- Inventor: Dorte Bartnik Johansson , Miroslav NIKOLIC
- Applicant: ROCKWOOL A/S
- Applicant Address: DK Hedehusene
- Assignee: ROCKWOOL A/S
- Current Assignee: ROCKWOOL A/S
- Current Assignee Address: DK Hedehusene
- Priority: WO TEP2020088061 2020.12.30
- International Application: PCT/EP2021/077183 2021.10.01
- Date entered country: 2023-06-29
- Main IPC: E04B1/86
- IPC: E04B1/86 ; D04H1/4218 ; D04H1/587
Abstract:
The invention relates to a method of making an acoustic product and a novel acoustic product, wherein the acoustic product is made by adhering a facing to a first major surface of an acoustic insulation element by the use of an adhesive and curing the adhesive. The adhesive is an aqueous adhesive composition which is free of phenol and formaldehyde and comprises:
a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol/g, such as 0.03 to 1.4 mmol/g, such as 0.075 to 2.0 mmol/g, such as 0.075 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins,
a component (ii) in form of one or more cross-linkers.
a component (i) in form of one or more lignosulfonate lignins having a carboxylic acid group content of 0.03 to 2.0 mmol/g, such as 0.03 to 1.4 mmol/g, such as 0.075 to 2.0 mmol/g, such as 0.075 to 1.4 mmol/g, based on the dry weight of the lignosulfonate lignins,
a component (ii) in form of one or more cross-linkers.
Information query
IPC分类:
