| 摘要 |
A polypropylene type aqueous dispersion comprising the following components (a) to (c): <tables id="TABLE-US-00001" num="00001"> <table frame="none" colsep="0" rowsep="0"> <tgroup align="left" colsep="0" rowsep="0" cols="4"> <colspec colname="1" colwidth="14pt" align="right"/> <colspec colname="2" colwidth="98pt" align="left"/> <colspec colname="3" colwidth="42pt" align="right"/> <colspec colname="4" colwidth="63pt" align="left"/> <thead> <row> <entry namest="1" nameend="4" align="center" rowsep="1"/> </row> </thead> <tbody valign="top"> <row> <entry>(a)</entry> <entry>a polypropylene type polymer</entry> <entry>100</entry> <entry>parts by weight</entry> </row> <row> <entry/> <entry>and/or a modified polypropylene</entry> </row> <row> <entry/> <entry>type polymer</entry> </row> <row> <entry>(b)</entry> <entry>a surfactant</entry> <entry>1 to 100</entry> <entry>parts by weight, and</entry> </row> <row> <entry>(c)</entry> <entry>water</entry> <entry>100 to 1,000</entry> <entry>parts by weight,</entry> </row> <row> <entry namest="1" nameend="4" align="center" rowsep="1"/> </row> </tbody> </tgroup> </table> </tables> wherein the component (a) has a main chain having the following features (1) and (2) and dispersion particles in the dispersion have an average particle size of at most 0.5 mum, Feature (1) when observing a peak derived from a carbon atom of a methyl group in a propylene unit chain part comprising a head-to-tail bond by 13C-NMR and fixing a chemical shift of a peak top at a peak attributable to pentad expressed by mmmm to 21.8 ppm, a ratio (S1/S) of an area S1 of a peak of a peak top at 21.8 ppm to a total area S of peaks at from 19.8 ppm to 22.1 ppm is at least 10% and at most 60%, and when an area of a peak (mmmr) of a peak top at 21.5 to 21.6 ppm is expressed as S2, 4+2S1/S2>5, and Feature (2) a content ratio (mol ratio) of propylene unit (A): other olefin unit (B) is from 100:0 to 90:10.
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