Process for preparing microcapsules

Details Process for preparing microcapsules Process for preparing microcapsules

2008-12-16

2011-10-11

Egwim, Kelechi (Department: 1762)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C524S457000, C525S201000

Reexamination Certificate

active

08034887

ABSTRACT:
The present invention relates to a process for preparing microcapsules comprising a lipophilic capsule core and a capsule wall synthesized from30% to 100% by weight, based on the total weight of the monomers, of one or more monomers (monomers I) from the group comprising C1-C24alkyl esters of acrylic and/or methacrylic acid, acrylic acid, methacrylic acid, and maleic acid,0% to 70% by weight, based on the total weight of the monomers, of one or more difunctional or polyfunctional monomers (monomers II) which are sparingly soluble or insoluble in water, and0% to 40% by weight, based on the total weight of the monomers, of one or more other monomers (monomers III).

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Anonym: “Culminal-Methylcellulose, Methylhydroxyethylcellulose, Methylhydroxypropylcellulose: Physical and Chemical Properties.”, Hercules-Aqualon Brochure, Total pp. 32 XP002524919 Retrieved from the Internet: URL:http://www.herc.com/aqualon/product-data/brochures/22001e3.pdf>.
U.S. Appl. No. 12/812,325, filed Jul. 9, 2010, Hantze, et al.
U.S. Appl. No. 12/918,728, filed Aug. 20, 2010, Jung, et al.

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