Patent · US Active

Hydrophilic copolymer and medical device

US11377512B2 · kind B2 · utility

1Cited by

3References

12Claims

0Family size

Assignee

Terumo Kabushiki Kaisha · JP

Inventors

Masanori Kuramoto · Rifu, JP
Takao Anzai · Yokohama, JP

Key dates

Filing date	Feb 22, 2019
Grant date	Jul 5, 2022
Priority date	—
Expiry date	Aug 15, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/50
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A hydrophilic copolymer that can form a surface lubricious layer exhibiting superior lubricating property and durability (lubrication retaining property), is provided. A hydrophilic copolymer having a good solvent solubility is provided. A hydrophilic copolymer is provided containing: structural units derived from a polymerizable monomer (A) having a sulfobetaine structure; structural units derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (—SO3H), a sulfuric acid group (—OSO3H), a sulfurous acid group (—OSO2H), and groups of salts thereof; and structural units derived from a polymerizable monomer (C) having a photoreactive group.

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