Composition for thin walled molded parts
A polymer composition comprising an organic polymer and a mica containing effect pigment, e.g., a pearlescent pigment comprising mica, well suited for producing molded articles, in particular, for molding articles comprising thin sections and or delicate features, such as a hollow interior defined by a thin wall or structural features susceptible to tear or other damage and the like, is provided as are a method for preparing molded articles comprising the polymer composition and articles comprising the polymer composition, including, for example, an article used to deliver a medical or personal care component such as a tampon applicator, and a method for preparing molded articles comprising the polymer composition. Optionally, articles of the present disclosure have a varying translucency or opacity about a dimension of the article.
1. A tampon assembly, comprising:
a tampon applicator defining a straight lengthwise axis, the tampon applicator comprising a polymer having about 95 to about 99.8% of an organic polymer and about 0.2% to about 5% of a carrier material, the carrier material having a letdown ratio of between about 2% and about 6%, the tampon applicator comprising:
an insertion tip region, the insertion tip region defining a forward-most portion of an applicator barrel, the insertion tip region having a tip thickness;
a barrel region adjacent the insertion tip region, the barrel region having a barrel thickness;
a grip region adjacent the barrel region, the grip region defining the aft-most portion of the applicator barrel and having a recessed region that has an exterior grip diameter less than an exterior barrel diameter of the barrel region, the grip region having a grip thickness;
a plunger that is coaxial with said applicator barrel, the plunger telescopically engaging the applicator barrel such that the plunger is at least partially interior to the applicator barrel; and
a pledget disposed within the applicator barrel;
wherein the insertion tip region of the applicator has one or more portions that are translucent and the tip thickness is less than the barrel thickness and less than the grip thickness;
wherein the barrel region is has one or more portions that are opaque; and
wherein the grip region is opaque.
2. The tampon assembly of claim 1 , wherein the tip thickness is measured at a forward-most end of the applicator barrel, the barrel thickness is measured at a location proximal the grip region, and the grip thickness is measured proximal the barrel region.
3. The tampon assembly of claim 1 , wherein the insertion tip region has a gradient of translucency along a length of the insertion tip region.
4. The tampon assembly of claim 1 , wherein the barrel region has a gradient of opacity along a length of the barrel region.