Patent ID: 11880131
Assignee: ARKEMA FRANCE
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  B  C | IPC B  C  G

Claim 0:
1. A transfer imprinting process comprising the following steps:
deposition of an anti-sticking layer on a template, optionally first treated by an adhesion primer (surface activation plasma), the anti-sticking layer comprising a homopolymer or a copolymer having at least one covalent bond that generates free radicals when the homopolyer or copolymer is activated thermally, by organic or inorganic redox, photochemically, by shearing, by plasma, or under the influence of ionizing radiation, the homopolymer or copolymer having a surface energy of greater than 5 mN/m, an elastic modulus E′ of greater than 1000 MPa at 25° C. or at the usage temperature as measured by dynamic mechanical analysis, and a weight-average molecular weight of greater than 500 g/mol,
activation of the covalent bond that generates free radicals thermally, by organic or inorganic redox, photochemically, by shearing, by plasma, or under the influence of ionizing radiation to form a film with a thickness of less than 50 nm on the template,
deposition or lamination of a polymer resin with a thickness ranging from 100 nm to 5 mm,
polymerization or cooling of the resin serving as imprint,
removing the imprint.