Auto care compositions with UV absorbers
Paste and liquid emulsion care compositions for cleaning, caring for and paving paint and trim components of motor vehicles are provided. The compositions include, as a UV filter, from 2% to 15% by weight, based on the total weight of the composition, of zinc oxide with particle sizes in the nm range. The zinc oxide can be coated to provide a hydrophobic coating thereon.
1 . A paste or liquid emulsion care composition for cleaning, caring for and preserving paint and trim components of motor vehicles comprising, as a UV filter, from 2% to 15% by weight, based on the total weight of the composition, of zinc oxide, said zinc oxide having particle sizes in the nm range.
2 . The composition as claimed in claim 1 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 2 to 100 m 2 .
3 The composition as claimed in claim 2 , wherein said mean particle sizes are ≦300 nm.
4 . The composition as claimed in claim 1 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 5 to 50 m 2 .
5 The composition as claimed in claim 4 , wherein said mean particle sizes are ≦300 nm.
6 . The composition as claimed in claim 1 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 10 to 30 m 2 .
7 . The composition as claimed in claim 6 , wherein said mean particle sizes are ≦300 nm.
8 . The composition as claimed in claim 1 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 15 to 25 m 2 .
9 The composition as claimed in claim 8 , wherein said mean particle sizes are ≦300 nm.
10 . The composition as claimed in claim 1 , wherein said zinc oxide includes a hydrophobic coating.
11 . A method for cleaning, caring for and preserving paint and trim components of motor vehicles comprising:
applying a paste or liquid emulsion care composition including from 2% to 15% of a UV filter comprising nanostrutured zinc oxide to said motor vehicle.
12 . The method as claimed in claim 11 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 2 to 100 m 2 .
13 The method as claimed in claim 12 , wherein said mean particle sizes are ≦300 nm.
14 . The method as claimed in claim 11 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 5 to 50 m 2 .
15 The method as claimed in claim 14 , wherein said mean particle sizes are ≦300 nm.
16 . The method as claimed in claim 11 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 10 to 30 m 2 .
17 . The method as claimed in claim 16 , wherein said mean particle sizes are ≦300 nm.
18 . The method as claimed in claim 11 , wherein the zinc oxide has mean particle sizes of ≦400 and a BET surface area of from 15 to 25 m 2 .
19 The method as claimed in claim 18 , wherein said mean particle sizes are ≦300 nm.
20 . The composition as claimed in claim 11 , wherein said zinc oxide includes a hydrophobic coating.