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Fragranced biodegradable film
专利权人:
Sara A. Funk
发明人:
Sara A. Funk,James H. Wang
申请号:
US12164570
公开号:
US08759279B2
申请日:
2008.06.30
申请国别(地区):
US
年份:
2014
代理人:
摘要:
A film formed from a biodegradable polymer matrix within which is contained at least one fragrance is provided. The ability to incorporate a fragrance into the polymer matrix is achieved in the present invention by controlling a variety of aspects of the film construction, including the nature of the fragrance, the nature of the biodegradable polymer, the manner in which the polymer matrix and fragrance are melt processed, etc. For example, the fragrance may be injected directly into the extruder and melt blended with the biodegradable polymer. In this manner, the costly and time-consuming steps of pre-encapsulation or pre-compounding of the fragrance into a masterbatch are not required. Furthermore, to obtain a balance between the ability of the fragrance to release the desired odor during use and likewise to minimize the premature exhaustion of the odor during melt processing, the fragrance is selected to have a boiling point (at atmospheric pressure) within a certain range, such as from about 125° C. to about 350° C.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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