Elastically restoring polymer-modified bitumen (PmB)

Details Elastically restoring polymer-modified bitumen (PmB) Elastically restoring polymer-modified bitumen (PmB)

1990-05-31

1992-02-25

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

106277, 1062844, 106668, 106671, C08L 9500, C09D 400, C09D10100, C09D20100

Patent

active

050910086

ABSTRACT:
A polymer-modified bitumen (PmB) having improved elastic restoration and having a content of 0.5-20 wt. % of polymer components which polymer components are comprised to the extent of at least 20 wt. % of polyalkyl (meth)acrylates having molecular weights greater than 30,000, said polyalkyl (meth)acrylate being comprised of 50-99.8 wt. % of alkyl (meth)acrylates having alkyl groups of 8-26 C atoms, 0.1-2.8 wt. % of polymerizable carboxylic acids, 0.1-2.8 wt. % of polymerizable basic nitrogen compounds; and 0-49.8 wt. % of one or more other polymerizable compounds each having not more than one polymerizable double bond.

REFERENCES:
patent: 2420082 (1947-06-01), Klinger
patent: 2848429 (1958-03-01), Woodruff et al.
Korner et al; Plaste und Kautschuk 24 (1977) 475-8.
Ger-AS 12 40 773=CA 67:6634m.
Ger-OS 23 31 727 (Has no English Equivalent).
Ger-OS 25 09 473=CA 86:92998h.
Jap. OS 52-141829=CA 89:48110a.
PCT [OS] 88/07067.

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