X hits on this document

58 views

0 shares

0 downloads

0 comments

4 / 17

2.

Pergut Product safety

Fig. 1: Carbon tetrachloride content

100,000

10,000

Content of carbon tetrachloride [ppm]

1,000

100

10

1

3.

Pergut range

Fig. 2: Table of adhesive grades

Grade

Viscosity at 23 °C (18% in toluene) [mPas]

Pergut S 20 Pergut S 40 Pergut S 90 Pergut S 130 Pergut S 170

20 ± 4 42 ± 9 92 ± 18 150 ± 30 165 ± 35

6

Pergut is produced in Dormagen, Germany, in one of the most modern production facili- ties in the world. A new process developed by Bayer guarantees an extremely low con- tent of carbon tetrachloride (C Cl4) in the product. With a C Cl4 content of < 0.005% pbw (= < 50 ppm), Pergut complies with the relevant regulations worldwide.

Bayer Competitive products

C CI4 [%]

(18% in toluene)

Toluene [%]

≤ 0.005

≤7

≤ 2.5

≤ 0.005

≤7

≤ 2.5

≤ 0.005

≤7

≤ 2.5

≤ 0.005

≤7

≤ 2.5

≤ 0.005

≤7

≤ 2.5

Color value

Pergut chlorinated rubber contains 64.5 – 67 % chlorine and is sold as a white powder with a density of approx. 1.6 g/cm3. The in- dividual grades differ in their molecular weight and therefore also in their viscosity, measured as an 18.5 % solution in toluene. The higher the number of the grade (S 20 – S 170), the higher the molecular weight. The S 20 to S 90 grades are mainly added to solventborne contact adhesives, whereas the high-viscosity grades, S 130 and S 170, are mostly used as adhesive raw materials for rubber-to-metal applications.

Document info
Document views58
Page views58
Page last viewedWed Dec 07 19:27:01 UTC 2016
Pages17
Paragraphs306
Words2795

Comments