US 12,392,693 B2
Hydrophilic substrate and method for preparing hydrophilic substrate
Yasuhisa Minagawa, Kobe (JP)
Assigned to SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed by Sumitomo Rubber Industries, Ltd., Kobe (JP)
Filed on Apr. 29, 2021, as Appl. No. 17/244,001.
Claims priority of application No. 2020-092434 (JP), filed on May 27, 2020.
Prior Publication US 2021/0372895 A1, Dec. 2, 2021
Int. Cl. G01N 1/40 (2006.01); C08F 120/28 (2006.01); C09D 133/14 (2006.01); B32B 27/06 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01)
CPC G01N 1/4077 (2013.01) [C08F 120/28 (2013.01); C09D 133/14 (2013.01); B32B 27/06 (2013.01); B32B 27/30 (2013.01); B32B 27/304 (2013.01); B32B 27/308 (2013.01); B32B 27/322 (2013.01); B32B 2327/00 (2013.01); B32B 2331/04 (2013.01); B32B 2333/04 (2013.01); B32B 2333/08 (2013.01); B32B 2333/12 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hydrophilic substrate, comprising:
a substrate having a surface containing at least one group represented by —N(R1)2 or —N(R2)3+ wherein each R1 or R2 is the same or different and represents a hydrogen atom or a substituted or unsubstituted hydrocarbon group optionally containing a hetero atom; and
a hydrophilic polymer layer provided on the surface of the substrate,
wherein the at least one group represented by —N(R1)2 or —N(R2)3+ is introduced by treating the surface of the substrate with a silane coupling agent containing the at least one group represented by —N(R1)2 or —N(R2)3+,
wherein the silane coupling agent is at least one selected from the group consisting of compounds represented by the following formulas (1-2) and (1-3 )

OG Complex Work Unit Chemistry
wherein in formula (1-2),
R11 to R13 are the same or different and each represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group optionally containing a hetero atom;
R16 to R18 are the same or different and each represent a substituted or unsubstituted monovalent hydrocarbon group optionally containing a hetero atom;
R19 represents a substituted or unsubstituted divalent hydrocarbon group optionally containing a hetero atom; and
X represents a halogen;

OG Complex Work Unit Chemistry
wherein in formula (1-3),
R21 to R23 are the same or different and each represent a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group optionally containing a hetero atom;
R24 to R26 are the same or different and each represent a substituted or unsubstituted monovalent hydrocarbon group optionally containing a hetero atom;
R27 to R30 each represent a substituted or unsubstituted divalent hydrocarbon group optionally containing a hetero atom;
X represents a halogen; and
n represents the number of repetitions; and
wherein the substrate is at least one selected from the group consisting of glass, acrylic resins, cycloolefin resins, carbonate resins, styrene resins, polyester resins, and polydimethylsiloxanes.