التفاصيل البيبلوغرافية
| العنوان: |
Painted Polyolefin Articles |
| Document Number: |
20120308752 |
| تاريخ النشر: |
December 6, 2012 |
| Appl. No: |
13/578977 |
| Application Filed: |
February 22, 2010 |
| مستخلص: |
Articles having a Shore A hardness of 50 to 95 and made from polyolefin compositions comprising an ethylene-alpha-olefin interpolymer (random or block or a mixture of the two) are paintable without the need for a primer or other surface treatment with paints free of phthalate-based plasticizer and designed to paint SBS- or SEBS-type rubber based compositions. These polyolefin compositions are free of (1) phthalate-based plasticizer, (2) halogen-containing polymer, and (3) leachable, small polymeric units derived from styrene monomer. In addition, the content of the alpha-olefin in the polyolefin composition is at least 9.7 mole percent. |
| Inventors: |
He, Robert Hai-Feng (Shanghai, CN); Cheng, Stephen Yau-Sang (Sheung Shui, CN); Peng, Shuwen (Shanghai, CN); Rego, Jose Manu (Houston, TX, US); Stucchi, Gloria (Zuerich, CH) |
| Claim: |
1. An article made from a polyolefin composition (A) comprising at least one of a (1) random ethylene-alpha-olefin interpolymer having a density of equal to or less than (≦) 0.91 g/cm3, or (2) multi-block ethylene-alpha-olefin interpolymer, (B) free of (1) phthalate-based plasticizer, (2) halogen-containing polymer, and (3) leachable, small polymeric units derived from styrene monomer, and (C) having a Shore A hardness of 50 to 95, with the proviso that the content of the alpha-olefin in the polyolefin composition is at least 9.7 mole percent. |
| Claim: |
2. The article of claim 1 painted without primer or other surface treatment with paint free of phthalate-based plasticizer, and (A) designed for painting an SBS- or SEBS-type rubber based composition, or (B) is an acrylic-modified paint designed for painting a polypropylene-based composition. |
| Claim: |
3. The article of claim 1 in which the random ethylene-α-olefin interpolymer is a substantially linear, homogeneous ethylene-α-olefin interpolymer. |
| Claim: |
4. The article of claim 1 in which the multi-block ethylene-α-olefin interpolymer has (a) a molecular fraction that elutes between about 40° C. and about 130° C. when fractionated using temperature rising effluent fractionation (TREF), characterized in that the fraction has a block index of at least 0.5 and up to 1 and a molecular weight distribution (MWD) greater than 1.3, or (b) an average block index greater than zero and up to 1.0 and an MWD greater than 1.3. |
| Claim: |
5. The article of claim 4 in which the ethylene multi-block interpolymer has at least one of the following properties: (i) a molecular weight distribution of greater than 1.3, (ii) a density of less than 0.90 g/cc, (iii) a 2% secant modulus of less than 150 MegaPascal (MPa) as measured by ASTM D-882-02, (iv) a melt point of less than 125° C., (v) an ∀-olefin content of at least 10 and less than 80 wt % based on the weight of the interpolymer, (vi) a Tg of less than −35° C., and (vii) a melt index (MI) of less than 100 grams per 10 minutes (g/10 min). |
| Claim: |
6. The article of claim 1 further comprising at least one additional polymer. |
| Claim: |
7. The article of claim 6 in which the additional polymer is polypropylene. |
| Claim: |
8. The article of claim 1 in the form of at least one of a toy, footwear, profile, instrument panel skin, furniture, sporting good, gasket, apparel, hose or tubing, and a component for a consumer electronic device or an appliance. |
| Claim: |
9. The article of claim 2 in which the paint is free of at least one of (i) halogen-containing polymer, and (ii) styrene monomer and/or leachable, small polymeric units derived from styrene monomer. |
| Claim: |
10. The article of claim 2 in which the paint is free or substantially free of (i) halogen-containing polymer, and (ii) styrene monomer and/or leachable, small polymeric units derived from styrene monomer. |
| Current U.S. Class: |
428/3/691 |
| Current International Class: |
08; 32; 32; 32; 08; 08 |
| رقم الانضمام: |
edspap.20120308752 |
| قاعدة البيانات: |
USPTO Patent Applications |