Light Stabilizer UV-944 CAS NO.70624-18-9

chemical name

poly[ [ 6-[ (1,1,3,3 - tetramethylbutyl)amino]- 1,3,5 - triazine-2,4-diyl] [ (2,2,6,6 - tetramethyl -4- piperidinyl)imino ] -1,6–hexanediyl [ (2,2,6,6-tetramethyl- 4-piperidinyl)imino]])

formula

[c₃₅h₆₆n₈]_n(n=4-5)

structure

cas no.

70624-18-9

molecular weight

2100-3000

specifications

appreance

white powder or yellowish granule

melting point

110-130 ^oc

ash

≤0.1%

loss on drying

≤1.0%

transmittance

425 nm≥93% 450 nm≥95%

advantage and

application

1. uv-944 944 is a high molecular weight hindered amine light stabilizer (hals). it shows excellent compatibility, high resistance to extraction and low volatility.
2. areas of application include polyolefins (pp,pe), olefin copolymers such as eva as well as blends of polypropylenewith elastomers. in addition in certain instances chimassorb 944 is highly effective in polyacetals, polyamides, polyurethanes, flexible and rigid pvc, as well as pvc blends and in certain styrenic elastomer and adhesive specialty applications.

solubility

(20^oc:g/100g solvent)

water

ethyl acetate

n-hexane

methanol

aceton

<0.01

>50

41

3

>50

package

25 kg cartons or drums