BRANCHED AMORPHOUS POLYAMIDE (CO)POLYMERS AND METHODS OF MAKING AND USING SAME

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United States of America Patent

APP PUB NO 20230167243A1
SERIAL NO

17995867

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Abstract

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Branched amorphous polyamide (co)polymers having a backbone formed by reacting a reaction mixture including at least 25 mol % of a di-amine selected from a secondary di-amine, a branched di-amine, or a combination thereof; and an aliphatic acid blend including a branched aliphatic dimer acid and a branched aliphatic trimer acid. The molar equivalent ratio of the di¬ amine to the aliphatic acid blend is 0.9-1.1. Preferably, the branched amorphous polyamide (co)polymer is not telechelic. The branched amorphous polyamide (co)polymer preferably exhibits one or more of a shear modulus of from 10,000 to 500,000 Pa at 70° C., a complex viscosity of greater than 1,000,000 mPa*s at 70° C., a glass transition temperature of less than 25° C., or a number average molecular weight of greater than 10,000 Da. Biodegradable and/or compostable adhesive articles including the branched amorphous polyamide (co)polymer also are disclosed.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 ST PAUL MN 55133-3427

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amos, David T St. Paul, US 46 979
Anderson, Jonathan J New Brighton, US 4 0
Kadoma, Ignatius A Cottage Grove, US 47 372
Kalgutkar, Rajdeep S Woodbury, US 50 458
Nelson, Jilliann M Maplewood, US 6 13
Schultz, Kimberly CM Woodbury, US 9 18
Severance, Joseph A Lake Elmo, US 4 3
Watts, Annabelle Minneapolis, US 5 0

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