Polymer particles which carry, implanted on their surface, amphi

Details Polymer particles which carry, implanted on their surface, amphi Polymer particles which carry, implanted on their surface, amphi

1988-05-06

1990-08-28

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523205, 523207, 524556, 524567, 524568, 524571, 524577, 524804, 526302, 526310, 526311, 526217, 5262923, 526274, 526286, 526287, 5263171, C08K 900, C08K 506

Patent

active

049526227

ABSTRACT:
Polymer particles which carry, implanted on their surface, amphiphilic molecules carrying ion-forming or reactive groups, and dispersions thereof, which may be prepared by contacting a latex of particles of a polymer having a glass transition temperature Tg greater than about 40.degree. C., with an amphiphilic compound having an HLB greater than or equal to 10 and a molecular weight greater than or equal to 400. The contacting is carried out at a temperature within the glass transition zone of the polymer, until enmeshing of the polymer chains and of the hydrophobic blocks of the amphiphilic compound has been achieved. The hydrophilic block of the amphiphilic compound carries at least one ion-forming or reactive group. The particles and their dispersions are useful in biological applications.

REFERENCES:
patent: 2461920 (1949-02-01), Pratt
patent: 4157323 (1979-01-01), Yen et al.
patent: 4217344 (1980-08-01), Vanderberghe et al.
patent: 4358388 (1982-11-01), Daniel et al.
Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd Ed., vol. 8, pp. 910-912.

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