US 12,252,602 B2
Use of molar mass controlled cellulose
Pia Willberg-Keyriläinen, Espoo (FI); Jarmo Ropponen, Espoo (FI); Ali Harlin, Espoo (FI); and Riku Talja, Espoo (FI)
Assigned to Teknologian tutkimuskeskus VTT Oy, Espoo (FI)
Filed by Teknologian tutkimuskeskus VTT Oy, Espoo (FI)
Filed on Jun. 28, 2022, as Appl. No. 17/851,874.
Application 17/851,874 is a continuation of application No. 16/484,841, granted, now 11,421,042, previously published as PCT/FI2018/050093, filed on Feb. 12, 2018.
Claims priority of application No. 20175114 (FI), filed on Feb. 10, 2017.
Prior Publication US 2022/0325005 A1, Oct. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B29B 13/00 (2006.01); B29C 64/314 (2017.01); B33Y 40/00 (2020.01); B33Y 70/00 (2020.01); C08B 3/10 (2006.01); C08L 1/08 (2006.01); B29K 1/00 (2006.01)
CPC C08L 1/08 (2013.01) [B29B 13/00 (2013.01); B29C 64/314 (2017.08); B33Y 40/00 (2014.12); B33Y 70/00 (2014.12); C08B 3/10 (2013.01); B29K 2001/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for manufacturing thermoplastic cellulose material comprising:
decreasing a molar mass of a raw cellulose material via hydrolysis, excluding total hydrolysis, to generate a hydrolyzed molar mass controlled cellulose, wherein the hydrolysis provides the hydrolyzed molar mass controlled cellulose with an average molecular mass of 30 to 300 kD and reduces an average molecular mass of the raw cellulose material by 40-85%; and
performing a long chain fatty acid modification on the hydrolyzed molar mass controlled cellulose to produce the thermoplastic cellulose material.