Polysiloxane polymers

• Main Authors: JAUNKY GUILLAUME W, GRIESSER WOLFGANG
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to the use of a polymer for improving the cleanability or reducing the contamination of a surface coating wherein the polymer is a non-crosslinked polymer having a polymer backbone comprising the following chain segments: i) a polysiloxane chain segment comprising repeating units of formula (I) wherein R1 independently represents a hydrocarbyl group at each occurrence and R2 represents a hydrocarbyl group at each occurrence; and n is an integer in the range of 6-150; and ii) a non-polysiloxane segment having at least one functional group comprising at least one of a hydroxyl group, an acryloyl group, a methacryloyl group, an acetyl group, a urethane group, and a methyl ether group; wherein the number of linking bonds between non-polysiloxane segments and polysiloxane segments in the polymer is less than 9.5%, calculated based on the average number of silicon atoms per polysiloxane segment, and wherein at least one non-polysiloxane segment is located between two polysiloxane segme