DE2220401C3 - Hardening sealants based on amorphous polyolefins - Google Patents

Description

DT-OS 2 005 207.

Both are suitable as drying triglycerides

30 such as one can use fully synthetic z. B. after the

For many areas of application, especially in construction DT-PS 953 829 or semi-synthetic, for example sektoi, sealants are needed. On joints- by dehydrating castor oil as castor oil sealing compounds that are used in assembly construction, as well as natural drying oils such as chinesides, the requirements are particularly high, because they contain sches wood oil, Japanese wood oil, poppy seed oil, hemp oil, must have good stability. Even with 35 perilla oil or walnut oil; preferably one uses The linseed oil should stretch to twice the joint width. Of course you can also use mixtures Adhesion and expansion behavior of the sealant of such oils and stand oils, pure or mixed, are sufficient. Hardening sets have a special meaning.

Sealants. They are easy to work with and can be used to accelerate the hardening process harden on the surface after processing. 40 sealants incorporate siccatives, for example those Masses exist z. B. from filler-containing manner the resinates, oleates, stearates, palmitates, octoates Mixtures of phthalic acid esters with linseed oil. These or naphthenates of cobalt, lead, or manganese; However, sealing compounds have the disadvantage that they preferably use cobalt octoate and cobalt is easily combustible. Filler naphthenates have this disadvantage. These siccatives can be used in proportions up to Sealing compounds containing largely amorphous 45 to 0.5%, preferably 0.1 to 0.2%, based on the dry polybutene-1, Polybutene oil and polybutadiene oil, the end oil, apply.

do not belong to the state of the art, do not; As these fillers, the sealing compounds contain powder

But masses are supposed to fulfill a different task and shaped inorganic and mineral substances,

therefore harden more strongly over time, in particular silica, silicates, sulfates, graphite and

those on the surface, they are naturally not in 50 carbonates such as talc, kaolin and chalk in quantities

In some cases it is suitable in which the sealing compound is 30 to 70%, preferably 40 to 60%,

on the one hand should be flame-retardant, on the other hand if in the presence of small amounts, in particular

hardens, but after hardening even after a long period of age - 1 to 5 ° _{o of} a silica with a low bulk

tion has a firm and stretchable surface. weight, such as B. a highly disperse silica. Of the

The subject of the invention are hardening sealants. Addition of 1 to 5% of this silica improves the

masses based on amorphous polyolefins, stability of the mixture. This is particular

characterized in that it masses from 7 to 40% of a filler containing chalk,

largely amorphous polybutene-1, 10 to 40% of the sealing compounds, which are 7 to 15% of a wide-

Polybutene oils, containing 1 to 15% of a drying triglyceous polybutene-1 which is amorphous, are light

rides and 30 to 70% fillers. 60 sprayable. You can do well with a hand pressure

The percentages are always syringes to be processed. These easily sprayable

Weight percent. Compounds are preferably suitable for sealing

As a largely amorphous polybutene-1, which can be thinner joints with a width of 1 to 2 cm.
preferably used to 10 to 30%, the sealing compounds with a higher proportion of going atactic polybutene-1, its co- and ter- 65 amorphous polybutene-1 are with a compressed air polymer with up to 20% Athens and / or To process propene or syringe. Hexen-1 and their mixtures with an ether-dissolving agent can also be applied with a spatula and are preferably suitable for wider joints with a proportion of over 50%, preferably from 60 to 90%.

? C / 4

These compounds are suitable as sealing compounds for 0.5 dl / g and an ether-soluble proportion of 72%, in many areas of application, in building construction, in particular in holding by polymerizing butene-1 at 90 ° C with beet construction, when laying pipes, in car a contact of TiCl ₁ · _S 0.35 A1C1 and AliiC ₄ H _{9) s} Mobilbau, for repairs, etc. They have an excluded at at a HyPartialdruck of 2, dissolved at 150 ⁰ C signed adhesion and extensibility, even at 5 and then 44 parts by weight of chalk and 3 long aging parts under the various weight parts Aerosil 200 were added. The mass is rungsbedingungen. Even after prolonged aging, stir until an even mixing can be achieved. The joints sealed with these compounds are sufficient. After adding 8 parts by weight of one, it is stretched to more than twice the joint width. light. Linseed oil stand oil, the 0.01 weight part Ko-The adhesion is so good that if joints in the precast concrete contain baltoctoat, no primer is necessary if it is cooled down to room temperature. cools. The mass is good with a hand pressure syringe

Surprisingly, these sealants are sprayable and have a good one after spraying Despite the triglyceride content, it is flame retardant and stable. The grout runs out of a countersink no further if the ignition source is removed right joint does not come out. The adhesive strength is so good will. 15 that a primer is not required.

B is η ie 1 1 ^{area of the} mass hardens after several days. Under

^p of the surface of the ground remains soft for Also

In 32 parts by weight of a polybutene oil, obtained from prolonged aging under different weather conditions by polymerizing a Q-section from 43% iso-influences, the adhesion and elongation behavior of the butylene, 24% butene-1, 24% butene-2 and 9% butane in ao sealant so good that expansions beyond the presence of 1% butadiene with 0.4% AlCl ₃ at 3O ⁰ C, 2 times the width are possible, with a viscosity of 4100 cP / 20 ° C and one uses instead of the largely atactic one

Molecular weight of 680, 10 parts by weight of polybutene-1 is a largely amorphous butene-propene, a largely atactic polybutene-1 with an ethene terpolymer that has about 5% propene and 1% RSV value of 0.6 dl / g and an ether-soluble ana ₅ Athens contains and an RSV value of 0.5 and an ether part of 67%, obtained by polymerizing a soluble fraction of 73%, one also obtains butene-1 with a contact of TiCl ₃ · 0.3 AlCl ₃ and a good elongation processable composition having good adhesion-Al (CiHg) ₃ strength at 90 ⁰ C and at a hydrogen partial pressure of 2 and stability at dissolved at 150 ⁰ C. Then, for example, 1 3

10 parts by weight of linseed oil, 0.01 part by weight of cobalt 30 ^p . .

octoate and 48 parts by weight of talc were added. In 25 parts by weight of a polybutene oil with a

The mass is stirred until a uniform molecular weight of 710 and a viscosity of the mixture is reached. After cooling, it can be processed more easily at 5300 cP / 20 ° C., which does not keep any low-boiling components at room temperature, with a hand-operated pressure syringe which boils below 150 ° C. at 15 mm Hg. She has good adhesive behavior. 35 holding through the polymerisation of a C ₄ -butte from joints in precast concrete construction therefore do not require 52% butene-1, 40% butene-2 and 8% butane in the counter-primer. After spraying 2.5% butadiene with 0.3% AlCl ₃ at 30 C, the joint has good stability. It does not flow out of the 20 parts by weight of a largely amorphous joint. The surface of the mass hardens butene-1-propene copolymers, the approximately 12% propene after a few days. Below the surface 40 remains in it, with an RSV of 0.7 dl / g and one that softens the mass. The adhesion and elongation behavior of the ether-soluble portion of 82% at 140 ^{° C. is so good, even after prolonged aging, that polymerisation of 1-butene η 12 prope} ° expands beyond twice the joint width with a contact made of TiCl ₈ · 0.35 AlCl ₃ and are possible. The mass is hardly inflammable, ie Al (iC ₄ H _e ) ₃ at 80 ⁰ C and a Η, partial pressure of it does not continue to burn when the ignition source is removed. +5 1.5 at, dissolved. After adding 10 parts by weight, instead of the largely atactic ricin oil, 0.01 parts by weight of cobalt octoate and polybutene-1, a largely amorphous butene-ethene-45 parts by weight kaolin is used intensively and cooled. The result is a plastic, ether-soluble proportion of 78%, which results in a spatula-able sealing compound which can also be sprayed on with a pressure pad which is easy to process using a syringe. It has a good good adhesion behavior and good stability. Adhesion to concrete, stone, wood, metal and art

⁶ substances and can be used without preamble.

B eis ρ ie 1 2 Hardens within a few _{minutes after processing}

In 35 parts by weight of a polybutene oil one day the surface of the mass. Below the surface viscosity of 4800cP / 20 ° C and a molecular 55, the mass remains soft. Even after prolonged aging, the weight is 690, the low-boiling components of which have an elongation capacity of over 2W / ". Have boiling point above 150 ^° C. at 15 mm Hg. The material is flame-retardant and does not continue to burn due to the polymerisation of a C _{4 cut} from 52% when the ignition source is removed. Butene-l, 24% trans-butene-2.16% cis-butene-2 and 8% is used instead of butene-l-propene

Butane in the presence of 2% butadiene and 0.4% AlCl ₃ 60 copolymers containing about 12% propene, a at 25 ° C 10 parts by weight of a largely butene-1-hexene-1 copolymer only about 5 /, hexene i, atactic polybutene-1 with an RSV value of, a comparable elongation mass is obtained.

Claims (4)

ώ and RSV values from 02 to 2.5 dl / g, preferably claims: from 0.3 to 1.2 dl / g. This corresponds to molecular weights, calculated from the solution viscosity, of 35,000 1. Hardening sealants based on up to 1,000,000, preferably from 60,000 to 400,000.
of amorphous polyolefins, thereby yielding homo- or copolymers of this type, mk e η η ζ calibrated η et, that they consist of 7 to 40% of a polybutene-1, 10 bis, which is, for example, butene-1 but Athens propene, largely amorphous 40% or hexene-1 with contacts of TiCl ₁ TiCl ₃ or a Polybutenöles, 1 to 15% of a drying TiCl ₃ · η AlCl, on the one hand and AIR, or AlR ₂ H ande-triglyceride, and 30 to 70% fillers consist hand, at temperatures from 20 to 120 C, especially 2- curing sealant according to claim 1, io more polymerized from 50 to 100 ⁰ C The polymer characterized in that one can be carried out as a largely sation discontinuously or continuously amorphous polybutene-1, the largely atactic, in solution or in bulk. The polybutene-1 or the co- and terpolymers of the solvent are preferably butene-1 or a butene-1 with up to 20% ether and / or propene mixture of butene-1, butene-2 and / or butane or hexene 1 as well as their mixtures with ether-15 sets. soluble proportions above 5OV and RSV values of Suitable polybutene oils are those only molecular 0.2 to 2.5 dl / g uses weights from 500 to 1000 and viscosities over 3. Hardening sealing compound according to the An 1000 cP / 20 ° C, preferably from 2000 to 20,000 cP / Proverbs 1 and 2, characterized in that 20 ⁰ C, in particular from 4000 to 10,000 cP / 20 ° C. the Poiybutenöle viscosities above 1000CP / 20 ° C ao This Poiybutenöle are no low-boiling arrival and molecular weights of from 500 up to 1000 parts contains the boiling below 100 ⁰ C at 15 mm Hg, have. Such polybutene oils are obtained, for example 4. Hardening sealant according to the polymerization of 1-butene, 2-butene and claims 1 to 3, characterized in that they optionally contain isobutylene and / or 1,3-butadiene up to 0.5% of a siccative . As holding C _r sections with Friedel-Crafts catalysts, preferably AlCl ₃ , at temperatures from -20 to -T-100 ⁰ C, in particular according to the information from