Document byrpOO73bkepdxgML9exb21Ny

iAtmited in a hot nelt. Ve ant attaching a diagram af tha hot aalt type Joint they are looking far. After consulting with you we de cided to affar a hot nelt similar to am that had boon prepared in tha paat. fhia fenaulstlen was suggested to tbe&t Option 300 0KB Santieiaar 9 Aroclor 3460 Chlorowar 70 Santieiaar 141 Dl-isodeeyl adipate BSVL 141 104 28 104 76 IS 28 7 In September Camalton aatrt us tha first specifications and we began corresponding directly with then. In January af 1955 eevaiul af tha nwnarnna aoupaniaa now interested s that tha National Association af Clay Sowar Pipe Manufacturers located at 1520 Eighteenth 8treat, K V., hashington 6, E.C., and thay had taken aut a contract with Battalia to femulate this ood. they agioad that hanaante ahauld cantact A1 j. Bead# Pireeaf far tha Ir. MMtftMi an engineer for canaslten, replied to this waini 1. Xt mm difficult to gat tha BSVL solution - It paver 414 unite go into solnt.Ion. fr 2. Thay vara mvahie to add that nuah Opalon 300 ainoa it nade the Hr*"T ao viscous it ms lapoaaihia to pour. 3. Span heating at 490 tha niature turned to tan oolor. 4. Mm tha alshM tea hasted over 300 it began to burn. 5. teen it tea panted and seeled, it tea vary soft - softer than fiitte the deftest apanpa rubber They need momthing in tea duraaotar af ahaut 30, DSW 587544 STLCOPCB4092880 fftge 3 - * Xn August of this yeor they node arrangements with Robinson to work jointly on the problem snd to use Robinson's know-how in this system. The last we beam was Boveober 14 stating that they had not had an opportunity to do such store work on this subject* but that Reed of the Rational Clay Sewer Pipe Association was getting ready to pub lish a report on hot welts and that they felt the result# looked very encouraging. Back to Robinson Clay Products for its 1955 picture. The 3rd of January Lloyd Shand wrote us a memo saying that they expected to use 15*000 pounds of plastisol per day by June of this year. the last part of January Ken RacIsaac and A1 6tockwell called at Robinson, they sent a research project to Joe Grcenhoe and Joe sent us s run-down on work to date. The Plastics Division* according to Joe* had made a recommendation in December of 1954. This mat Op&lon 410 DIOP Panflex BN-1 Atomite Dyphos Iron oxide red 100 parts 100 " 60 * 100 n 6* 68 Robinson objected to the use of Atoaite since they must use Potter Flint to withstand acid. They re -forcailatea, this and sent it to Robinson Clay In January. The formulation when rant Opalon 410 POP Solvaloid C Potter Flint Dyphos Indian red 717 100 parts 50 * 30 8 100 8 68 8 The pigment from Releh&rd CouXston. After mixing for 15 minutes in a pony mixer they added 50 parts of DO? and 50 parts of Selvalold C and mixed for another 5 minutes. This formulation had a Shore "A8 of 56-58* one hour heat stability at 350F. rated as good and suitable rlseoBlty. . .. . Potter Faint is a product ef Pennsylvania Pulverising Company of iewlstown* Pennsylvania. It sails far about |15 a ten snd is a finely ground grade that will pass 800 smsh sateen. On March 30 1 eallsd at Robinson Clay Produets with Lloyd Shand. Ai Stockwtll was supposed to go* but wss unable to seeoaaaay us. Mr. Aadsrsoa* their insist* waa eut of town sad Joe Mllllkin* his sssistaat* allowed us through the plant. At this tine they stated that fori k STLCOPCB4092881 t` Page 4 - 1. 750 pal tensile strength 2. Shore Hardness of 50, Milch would bo true both at So?, and 32F 3. So boat degradation or fuming at 375?. This tost la run to determine the fuming, cartoning and discolora tion of the product. It is checked over? two minutes up until twelve minutes, aver? three minutes up to twenty-four minutes and over twenty-four minutes every aim minutes aa long aa it will go. 4. 3,000 centipoise viscosity in one week. 5. Very good mold release from spun aluminum molds. 6 Excellent extraction resistance - they feel this can only bo obtained by the use of Potter Flint. 7- They do not have a color or odor spec end can easily stand some color and sons odor. 8. They prefer a let of filler, but must have 100 total solids. .. 9 The price should be 25 cents a pound or less. At that tins they pointed out that their plant at Ralvorn, Ohio, was on a similar production basis and that the? plan to aat up a future \ plant at Pottstown, Pennsylvania, where they would have experimental work and a production line. In June Ken UseIsaac asst me mere recant specifications from Robinson. Those call far a plaetlsol to bet 1. Color - tile rad 2. Vlaeoeity - 1,000 to 2,000 eentipolaos) viscosityifter 30 days, not over 4,000 oontipoiaaa. fbo plaetlsol i- cured at 300-400?., depending upon supplier*s remw--nmian, tat have the fallowing properties (Asm boats were appl liable) hater ^aogyUan - Set poor 1ft Tensile gtre^th - Mat^looa lfcOoJOOji at ii Set loos than 1M0 Bet Mac than idOjf f 0S\N 587546 STLCOPCB4092882 r - pte* ft . Filler - Must be sold "proof! Fetter Flint required. Shore "A" Duron*ter 8o*F. - not ever As end less then 4o 52F. - net over 60 Beet stability - 2 in. disaster piece, 3/8 in. thick oust be able to be heated for one hour without gassing or bloating. Dots Bechtold tells us on the first of December that they still buy free booster Finishes and Watson Standard sad are running plants at Malvern, Ohio# and Pottstown# Pa. They expect to start at Magadere# Ohio# very shortly. their consumption is roughly 8 dnms of plastisol a day and because of friendship between Andersen of Robinson Clay Products and Joe perrons of Wooster Finishes they do not feel ready to naka their own until some time in 1956. The last part of Mey# A1 Mood of Motional Clay Sowar Pipe Manufacturers Association visited us and Elmer sad Z spent all day with his. We dlscusssd plastisols and hot molts sad ws suggested those formulations t 1, Opalon 300 25 MO? 75 > 83e0? 5 1 Antimony aside *5 5 Atomise 25 5 5 1 25 5 15 10 25 55 3 12.5 MO Mi ppumifiygl i DSW 587547 STLCOPCB4092883 - page 6 - Flaatiscl viscosity - Hot less than X,000 esntipolaeft Initially cor core than 7 #000 centipoiseej the average vIbcostty should be approximately 3,000 and after 28 days aging should not be over 7#000, Elongation At least 100$ Tensile strength Hot less than 700 psl Tear strength Greater than 100 pounds Max < specific gravity 1.35 (this is really tough) Filler Must be acid-proof Other requirements* 1, There must be no change in physical properties after one hour at tOOF. 2. beter absorption - 1$ or less Zn addition, there should be no change in the finished material when It has been subjected to 10$ Wesson oil, 10$ detergent and 3q$ water at 130TF. There should cot be more than 3$ change in the properties after this solvent test. I For your information all the pipe on the West Coast is unglazed this should promote adhesion. We now have roughly ten accounts that could use this information and would be very happy to have it. Of course, all of them arc working in the acme Industry and ratter closely together and many sourcee sight be duplication If these primary accounts, that is the clay pipe people themselves, do not wish to work with it, we can easily sextet such information through selected compounders who would be happy to sell such formulations to the clay pipe people. You can see that this is a big problem with us and one which represents quite a bit of potential. 1 can think of no otter problem at the current time which is spread out ever such a wide number of accounts and which would probably do us more good with a small amount of Informa tion than any otter instance. We would certainly appreciate any information, both plaatlsol or hot welt, that you might be able to develop. As soon as we ten get hold of it, wo will instantly disseminate it to an our eustoners. F. W Spink STLCOPCB4092884