I'm still using from and old bottle of STP's Sun-of-a-Gun.
After over 30 years as an industrial chemist, the ingredients don't look
very frightening to me. These vinyl and tire cleaners and protectants
are consumer products and expose a lot of customers and therefore
considerable thought goes into their formulation.
Claim 4 is unclear and meaningless to me.
Claim 5 using dimethyl ether applies to aerosol containers since
dimethyl ether boils below room temperature like propane and is a good
aerosol propellant and fuel. It could be a fire hazard. I did not read
nearly all of this patent. Most of the solvents seemed to be the safer ones.
Note that Son-of-a-Gun appears in a comparative example or two.
What you definitely do want is the silicone for lubrication and the UV
stabilizer and/or antioxidants. You probably do not want to eat these.
Some are hindered phenols. One hindered phenol antioxidant that you
depend on is Vitamin E. I doubt that Vitamin E inspired the hindered
phenol industrial antioxidants, but don't know the history.
I don't prefer green soap/glycerine rubber lube. If it sits around for
long periods after opening, the microorganisms recognize glycerine as
food like we do. Soon the old "natural" lube stinks. Try the good
synthetic stuff! (WIDE GRIN)
Fred Rash
On 7/11/2012 11:17 AM, William Gowen wrote:
>
> It sounds like there's some bad stuff in there.
>
> On 7/11/2012 10:56 AM, John Kagan wrote:
>>
>> Interesting info:
>>
>> http://osdir.com/patents/Cleaning-compositions/Liquid-protectant-composition-06933268.html
>>
>
>
>
Received on Wed Jul 11 2012 - 08:58:57 CEST