EP 3891213 A1 20211013 - PVP COPOLYMER FOR HARSH CHEMICAL PACKAGING
Title (en)
PVP COPOLYMER FOR HARSH CHEMICAL PACKAGING
Title (de)
PVP-COPOLYMER ZUR VERPACKUNG AGGRESSIVER CHEMIKALIEN
Title (fr)
COPOLYMÈRE DE PVP POUR L'EMBALLAGE D'UN PRODUIT CHIMIQUE AGRESSIF
Publication
Application
Priority
- US 201816208298 A 20181203
- US 2019064199 W 20191203
Abstract (en)
[origin: WO2020117777A1] A water soluble film useful in unit-dose chemical packaging is disclosed. The film may include: a water soluble saccharide and a polyvinyl alcohol copolymer consisting essentially of: (a) from 80 to 99 mole percent of vinyl alcohol and vinyl ester monomer; and (b) from 1 to 20 mole percent of a pyrrolidone comonomer. Such compositions may be used to provide a water-soluble film simultaneously satisfying requirements in regard to water solubility, biodegradability, and physical properties, even when used for packaging a broad range of harsh, oxidizing chemicals.
IPC 8 full level
C08J 5/18 (2006.01); B65D 65/46 (2006.01); C08F 216/06 (2006.01); C08K 5/053 (2006.01); C08K 5/1535 (2006.01)
CPC (source: EP)
B65D 65/46 (2013.01); C08F 216/06 (2013.01); C08J 5/18 (2013.01); C08J 2329/04 (2013.01); C08K 5/053 (2013.01); C08K 5/06 (2013.01); Y02W 90/10 (2015.05)
C-Set (source: EP)
Citation (search report)
See references of WO 2020117777A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2020117777 A1 20200611; EP 3891213 A1 20211013; TW 202026319 A 20200716
DOCDB simple family (application)
US 2019064199 W 20191203; EP 19835334 A 20191203; TW 108143960 A 20191202