Patent ID: 11911524
Assignee: STRYKER EUROPEAN OPERATIONS LIMITED
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 0:
1. A foam comprising a phase-separated polymer including an amorphous segment and a crystalline segment, said polymer having the formula:

—[R-Q1[-R′—Z1—[R″—Z2—R′—Z3]p—R″Z4]q—R′-Q2]-n  (I),

wherein:
the amorphous segment comprises R, and at least one R comprises (i) a hydrophilic segment, the hydrophilic segment being derived from polyethylene glycol, polypropylene glycol, or polybutylene glycol, and (ii) a polyester segment based on lactide and ε-caprolactone,
R′ and R″ are independently C2-C8 alkylene, optionally comprising S, N, P or O in the C2-C8 alkylene, wherein the C2-C8 alkylene is optionally substituted with C1-C10 alkyl or C1-C10 alkyl groups substituted with protected S, N, P or O moieties,
Z1-Z4 are each urethane,
Q1 and Q2 are independently urea, urethane, amide, carbonate, ester or anhydride,
n is an integer from 5-500, and
p and q are independently 0 or 1, provided that when q is 0, R is a mixture of at least one crystalline polyester, polyetherester or polyanhydride segment and at least one amorphous aliphatic polyester, polyether, polyanhydride and/or polycarbonate segment.