Patent ID: 11934023
Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
Field: Optics (Instruments)
Classification: CPC G  C | IPC C  G

Claim 21:
22. A foam, comprising:
from 30% to 100% by weight of a polyolefin elastomer (POE) or thermoplastic elastomer (TPE), wherein the POE or TPE has a tensile modulus of at most 10 MPa at 100% secant; and
from 0% to 70% by weight of low density polyethylene (LDPE);
wherein the foam comprises a closed-cell morphology having pores with an average effective circle diameter of from 10 μm to 500 μm;
wherein the expansion ratio is at least 50%; and
wherein the foam has a compression set of no more than 30% as measured after compression to a strain of 50% for ten hours and after four hours of recovery time.