This plasticization causes hairsprayed hair to droop in humid atmospheres.
N vinyl 2 pyrrolidone nvp.
For pharmaceuticals cosmetics and food additives or copolymers used as viscosity improvers in oils and in water borne paints and adhesives.
Soluble in water and a variety of organic solvents.
Bpa 10 ppm n n di sec butyl p phenylenediamine applications.
Poly vinyl acetate pva in contrast is a soft water insoluble nonpolar polymer that resists removal by shampoo.
The base catalyzed reaction with acetylene.
N vinylpyrrolidone nvp is an organic compound consisting of a 5 membered lactam linked to a vinyl group it is a colorless liquid although commercial samples can appear yellowish.
88 12 0 molecular and structural formula c 6 h 9 no characteristics a colorless to slightly yellowish transparent liquid.
N vp is also used as a reactive thinner in uv cured inks and lacquers.
It is produced industrially by vinylation of 2 pyrrolidone i e.
Specification no tests specification 1 purity ge 99 5 2 denstiy g ml 1 03 1 04 3.
Reactive and susceptible to hydrolyzation and polymerization.
The majority of the n vinyl pyrrolidone n vp that is sold within the eu is used in the production of polyvinyl pyrrolidone e g.
Reactive diluent monomer copolymer modifier for industrial and cosmetic use.
C 6 h 9 no.
Poly n vinyl 2 pyrrolidone pvp is a polar brittle water soluble glassy polymer that is readily plasticized by humidity.