Patent ID: 11945978
Assignee: INGEVITY UK LTD
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A hot melt adhesive composition:
a) a mixture of bio-based polymer;
b) a poly-D-lactic acid block-based bio-nucleator;
c) an amorphous polylactic acid-based bio-tackifier; and
d) a poly-L-lactic acid block-based bio-wax;
wherein the mixture of bio-based polymer comprises a first polylactic acid-based polymer having a Mn (number average molecular weight) of about 10 to about 20 kg/mol and a second polylactic acid-based polymer having Mn of about 45 about 85 kg/mol; and
wherein the viscosity of the hot melt adhesive ranges from about 800 to about 5,000 cPs at 177° C., measured by Brookfield Viscometer (model DV1), with spindle #27 at 177° C.